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Finding the Fourth Proportional to 61,818.68, 85,314.02 and 34,961.20

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Solution

The fourth proportional to 61,818.68, 85,314.02 and 34,961.20 is: 48,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,818.68 : 85,314.02 = 34,961.20 : x
  2. Step 2: Convert to fraction form
    61,818.68/85,314.02 = 34,961.20/x
  3. Step 3: Cross multiply
    61,818.68x = 85,314.02 × 34,961.20
  4. Step 4: Simplify right side
    61,818.68x = 2,982,680,127.93
  5. Step 5: Solve for x
    x = 2,982,680,127.93/61,818.68
  6. Step 6: Final answer
    x = 48,248.85

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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.