Home / 91,691.01-137,521.76-25,115.57

Finding the Fourth Proportional to 91,691.01, 137,521.76 and 25,115.57

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Solution

The fourth proportional to 91,691.01, 137,521.76 and 25,115.57 is: 37,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,691.01 : 137,521.76 = 25,115.57 : x
  2. Step 2: Convert to fraction form
    91,691.01/137,521.76 = 25,115.57/x
  3. Step 3: Cross multiply
    91,691.01x = 137,521.76 × 25,115.57
  4. Step 4: Simplify right side
    91,691.01x = 3,453,937,264.23
  5. Step 5: Solve for x
    x = 3,453,937,264.23/91,691.01
  6. Step 6: Final answer
    x = 37,669.31

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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.