Home / 91,689.36-137,532.92-25,129.43

Finding the Fourth Proportional to 91,689.36, 137,532.92 and 25,129.43

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Solution

The fourth proportional to 91,689.36, 137,532.92 and 25,129.43 is: 37,693.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,689.36 : 137,532.92 = 25,129.43 : x
  2. Step 2: Convert to fraction form
    91,689.36/137,532.92 = 25,129.43/x
  3. Step 3: Cross multiply
    91,689.36x = 137,532.92 × 25,129.43
  4. Step 4: Simplify right side
    91,689.36x = 3,456,123,479.18
  5. Step 5: Solve for x
    x = 3,456,123,479.18/91,689.36
  6. Step 6: Final answer
    x = 37,693.84

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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.