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Finding the Fourth Proportional to 88,123.71, 121,610.70 and 50,397.96

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Solution

The fourth proportional to 88,123.71, 121,610.70 and 50,397.96 is: 69,549.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,123.71 : 121,610.70 = 50,397.96 : x
  2. Step 2: Convert to fraction form
    88,123.71/121,610.70 = 50,397.96/x
  3. Step 3: Cross multiply
    88,123.71x = 121,610.70 × 50,397.96
  4. Step 4: Simplify right side
    88,123.71x = 6,128,931,194.17
  5. Step 5: Solve for x
    x = 6,128,931,194.17/88,123.71
  6. Step 6: Final answer
    x = 69,549.17

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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.