Home / 80,607.24-120,726.47-38,516.91

Finding the Fourth Proportional to 80,607.24, 120,726.47 and 38,516.91

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Solution

The fourth proportional to 80,607.24, 120,726.47 and 38,516.91 is: 57,687.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,607.24 : 120,726.47 = 38,516.91 : x
  2. Step 2: Convert to fraction form
    80,607.24/120,726.47 = 38,516.91/x
  3. Step 3: Cross multiply
    80,607.24x = 120,726.47 × 38,516.91
  4. Step 4: Simplify right side
    80,607.24x = 4,650,010,579.61
  5. Step 5: Solve for x
    x = 4,650,010,579.61/80,607.24
  6. Step 6: Final answer
    x = 57,687.26

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1.5x scale

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.