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Finding the Fourth Proportional to 88,123.92, 121,607.40 and 47,836.12

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Solution

The fourth proportional to 88,123.92, 121,607.40 and 47,836.12 is: 66,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,123.92 : 121,607.40 = 47,836.12 : x
  2. Step 2: Convert to fraction form
    88,123.92/121,607.40 = 47,836.12/x
  3. Step 3: Cross multiply
    88,123.92x = 121,607.40 × 47,836.12
  4. Step 4: Simplify right side
    88,123.92x = 5,817,226,179.29
  5. Step 5: Solve for x
    x = 5,817,226,179.29/88,123.92
  6. Step 6: Final answer
    x = 66,011.89

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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.