Home / 83,708.10-125,562.15-52,215.30

Finding the Fourth Proportional to 83,708.10, 125,562.15 and 52,215.30

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Solution

The fourth proportional to 83,708.10, 125,562.15 and 52,215.30 is: 78,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,708.10 : 125,562.15 = 52,215.30 : x
  2. Step 2: Convert to fraction form
    83,708.10/125,562.15 = 52,215.30/x
  3. Step 3: Cross multiply
    83,708.10x = 125,562.15 × 52,215.30
  4. Step 4: Simplify right side
    83,708.10x = 6,556,265,330.90
  5. Step 5: Solve for x
    x = 6,556,265,330.90/83,708.10
  6. Step 6: Final answer
    x = 78,322.95

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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.