Home / 91,957.32-137,935.10-54,490.43

Finding the Fourth Proportional to 91,957.32, 137,935.10 and 54,490.43

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Solution

The fourth proportional to 91,957.32, 137,935.10 and 54,490.43 is: 81,735.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,957.32 : 137,935.10 = 54,490.43 : x
  2. Step 2: Convert to fraction form
    91,957.32/137,935.10 = 54,490.43/x
  3. Step 3: Cross multiply
    91,957.32x = 137,935.10 × 54,490.43
  4. Step 4: Simplify right side
    91,957.32x = 7,516,141,948.97
  5. Step 5: Solve for x
    x = 7,516,141,948.97/91,957.32
  6. Step 6: Final answer
    x = 81,735.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.