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Finding the Fourth Proportional to 63,773.28, 88,009.20 and 39,892.32

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Solution

The fourth proportional to 63,773.28, 88,009.20 and 39,892.32 is: 55,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,773.28 : 88,009.20 = 39,892.32 : x
  2. Step 2: Convert to fraction form
    63,773.28/88,009.20 = 39,892.32/x
  3. Step 3: Cross multiply
    63,773.28x = 88,009.20 × 39,892.32
  4. Step 4: Simplify right side
    63,773.28x = 3,510,891,169.34
  5. Step 5: Solve for x
    x = 3,510,891,169.34/63,773.28
  6. Step 6: Final answer
    x = 55,052.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.