Home / 89,395.71-123,377-51,669.96

Finding the Fourth Proportional to 89,395.71, 123,377 and 51,669.96

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Solution

The fourth proportional to 89,395.71, 123,377 and 51,669.96 is: 71,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,395.71 : 123,377 = 51,669.96 : x
  2. Step 2: Convert to fraction form
    89,395.71/123,377 = 51,669.96/x
  3. Step 3: Cross multiply
    89,395.71x = 123,377 × 51,669.96
  4. Step 4: Simplify right side
    89,395.71x = 6,374,884,654.92
  5. Step 5: Solve for x
    x = 6,374,884,654.92/89,395.71
  6. Step 6: Final answer
    x = 71,310.86

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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.