Home / 83,375.52-125,000.88-30,775.20

Finding the Fourth Proportional to 83,375.52, 125,000.88 and 30,775.20

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Solution

The fourth proportional to 83,375.52, 125,000.88 and 30,775.20 is: 46,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,375.52 : 125,000.88 = 30,775.20 : x
  2. Step 2: Convert to fraction form
    83,375.52/125,000.88 = 30,775.20/x
  3. Step 3: Cross multiply
    83,375.52x = 125,000.88 × 30,775.20
  4. Step 4: Simplify right side
    83,375.52x = 3,846,927,082.18
  5. Step 5: Solve for x
    x = 3,846,927,082.18/83,375.52
  6. Step 6: Final answer
    x = 46,139.77

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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.