Home / 83,233.12-124,862.11-30,638.61

Finding the Fourth Proportional to 83,233.12, 124,862.11 and 30,638.61

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Solution

The fourth proportional to 83,233.12, 124,862.11 and 30,638.61 is: 45,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,233.12 : 124,862.11 = 30,638.61 : x
  2. Step 2: Convert to fraction form
    83,233.12/124,862.11 = 30,638.61/x
  3. Step 3: Cross multiply
    83,233.12x = 124,862.11 × 30,638.61
  4. Step 4: Simplify right side
    83,233.12x = 3,825,600,867.76
  5. Step 5: Solve for x
    x = 3,825,600,867.76/83,233.12
  6. Step 6: Final answer
    x = 45,962.48

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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.