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Finding the Fourth Proportional to 67,330.50, 100,995.75 and 25,777.50

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Solution

The fourth proportional to 67,330.50, 100,995.75 and 25,777.50 is: 38,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,330.50 : 100,995.75 = 25,777.50 : x
  2. Step 2: Convert to fraction form
    67,330.50/100,995.75 = 25,777.50/x
  3. Step 3: Cross multiply
    67,330.50x = 100,995.75 × 25,777.50
  4. Step 4: Simplify right side
    67,330.50x = 2,603,417,945.63
  5. Step 5: Solve for x
    x = 2,603,417,945.63/67,330.50
  6. Step 6: Final answer
    x = 38,666.25

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.