Home / 80,399.24-120,574.17-55,598.66

Finding the Fourth Proportional to 80,399.24, 120,574.17 and 55,598.66

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Solution

The fourth proportional to 80,399.24, 120,574.17 and 55,598.66 is: 83,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,399.24 : 120,574.17 = 55,598.66 : x
  2. Step 2: Convert to fraction form
    80,399.24/120,574.17 = 55,598.66/x
  3. Step 3: Cross multiply
    80,399.24x = 120,574.17 × 55,598.66
  4. Step 4: Simplify right side
    80,399.24x = 6,703,761,679.74
  5. Step 5: Solve for x
    x = 6,703,761,679.74/80,399.24
  6. Step 6: Final answer
    x = 83,380.91

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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.