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Finding the Fourth Proportional to 88,757.28, 122,428.80 and 67,489.92

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Solution

The fourth proportional to 88,757.28, 122,428.80 and 67,489.92 is: 93,093.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,757.28 : 122,428.80 = 67,489.92 : x
  2. Step 2: Convert to fraction form
    88,757.28/122,428.80 = 67,489.92/x
  3. Step 3: Cross multiply
    88,757.28x = 122,428.80 × 67,489.92
  4. Step 4: Simplify right side
    88,757.28x = 8,262,709,917.70
  5. Step 5: Solve for x
    x = 8,262,709,917.70/88,757.28
  6. Step 6: Final answer
    x = 93,093.32

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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.