Home / 80,562.30-111,073.78-57,619.76

Finding the Fourth Proportional to 80,562.30, 111,073.78 and 57,619.76

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Solution

The fourth proportional to 80,562.30, 111,073.78 and 57,619.76 is: 79,442.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,562.30 : 111,073.78 = 57,619.76 : x
  2. Step 2: Convert to fraction form
    80,562.30/111,073.78 = 57,619.76/x
  3. Step 3: Cross multiply
    80,562.30x = 111,073.78 × 57,619.76
  4. Step 4: Simplify right side
    80,562.30x = 6,400,044,062.55
  5. Step 5: Solve for x
    x = 6,400,044,062.55/80,562.30
  6. Step 6: Final answer
    x = 79,442.18

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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.