Home / 90,432.95-124,772.01-71,253.26

Finding the Fourth Proportional to 90,432.95, 124,772.01 and 71,253.26

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Solution

The fourth proportional to 90,432.95, 124,772.01 and 71,253.26 is: 98,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,432.95 : 124,772.01 = 71,253.26 : x
  2. Step 2: Convert to fraction form
    90,432.95/124,772.01 = 71,253.26/x
  3. Step 3: Cross multiply
    90,432.95x = 124,772.01 × 71,253.26
  4. Step 4: Simplify right side
    90,432.95x = 8,890,412,469.25
  5. Step 5: Solve for x
    x = 8,890,412,469.25/90,432.95
  6. Step 6: Final answer
    x = 98,309.44

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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.