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Finding the Fourth Proportional to 85,501.80, 128,259.98 and 22,330.32

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Solution

The fourth proportional to 85,501.80, 128,259.98 and 22,330.32 is: 33,497.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,501.80 : 128,259.98 = 22,330.32 : x
  2. Step 2: Convert to fraction form
    85,501.80/128,259.98 = 22,330.32/x
  3. Step 3: Cross multiply
    85,501.80x = 128,259.98 × 22,330.32
  4. Step 4: Simplify right side
    85,501.80x = 2,864,086,396.59
  5. Step 5: Solve for x
    x = 2,864,086,396.59/85,501.80
  6. Step 6: Final answer
    x = 33,497.38

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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.