Home / 90,471.92-135,689.45-34,292.66

Finding the Fourth Proportional to 90,471.92, 135,689.45 and 34,292.66

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Solution

The fourth proportional to 90,471.92, 135,689.45 and 34,292.66 is: 51,432.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,471.92 : 135,689.45 = 34,292.66 : x
  2. Step 2: Convert to fraction form
    90,471.92/135,689.45 = 34,292.66/x
  3. Step 3: Cross multiply
    90,471.92x = 135,689.45 × 34,292.66
  4. Step 4: Simplify right side
    90,471.92x = 4,653,151,324.53
  5. Step 5: Solve for x
    x = 4,653,151,324.53/90,471.92
  6. Step 6: Final answer
    x = 51,432.00

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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.