Home / 80,177.24-120,309.91-40,737.74

Finding the Fourth Proportional to 80,177.24, 120,309.91 and 40,737.74

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Solution

The fourth proportional to 80,177.24, 120,309.91 and 40,737.74 is: 61,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,177.24 : 120,309.91 = 40,737.74 : x
  2. Step 2: Convert to fraction form
    80,177.24/120,309.91 = 40,737.74/x
  3. Step 3: Cross multiply
    80,177.24x = 120,309.91 × 40,737.74
  4. Step 4: Simplify right side
    80,177.24x = 4,901,153,129.61
  5. Step 5: Solve for x
    x = 4,901,153,129.61/80,177.24
  6. Step 6: Final answer
    x = 61,128.98

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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.