Home / 80,837.52-111,551.76-45,031.20

Finding the Fourth Proportional to 80,837.52, 111,551.76 and 45,031.20

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Solution

The fourth proportional to 80,837.52, 111,551.76 and 45,031.20 is: 62,140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,837.52 : 111,551.76 = 45,031.20 : x
  2. Step 2: Convert to fraction form
    80,837.52/111,551.76 = 45,031.20/x
  3. Step 3: Cross multiply
    80,837.52x = 111,551.76 × 45,031.20
  4. Step 4: Simplify right side
    80,837.52x = 5,023,309,614.91
  5. Step 5: Solve for x
    x = 5,023,309,614.91/80,837.52
  6. Step 6: Final answer
    x = 62,140.82

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1.5x scale

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.