Home / 80,785.22-111,502.17-52,441.70

Finding the Fourth Proportional to 80,785.22, 111,502.17 and 52,441.70

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Solution

The fourth proportional to 80,785.22, 111,502.17 and 52,441.70 is: 72,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,785.22 : 111,502.17 = 52,441.70 : x
  2. Step 2: Convert to fraction form
    80,785.22/111,502.17 = 52,441.70/x
  3. Step 3: Cross multiply
    80,785.22x = 111,502.17 × 52,441.70
  4. Step 4: Simplify right side
    80,785.22x = 5,847,362,790.98
  5. Step 5: Solve for x
    x = 5,847,362,790.98/80,785.22
  6. Step 6: Final answer
    x = 72,381.60

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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.