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Finding the Fourth Proportional to 75,330.20, 112,865.70 and 63,666.20

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Solution

The fourth proportional to 75,330.20, 112,865.70 and 63,666.20 is: 95,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,330.20 : 112,865.70 = 63,666.20 : x
  2. Step 2: Convert to fraction form
    75,330.20/112,865.70 = 63,666.20/x
  3. Step 3: Cross multiply
    75,330.20x = 112,865.70 × 63,666.20
  4. Step 4: Simplify right side
    75,330.20x = 7,185,730,229.34
  5. Step 5: Solve for x
    x = 7,185,730,229.34/75,330.20
  6. Step 6: Final answer
    x = 95,389.77

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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.