Home / 80,785.68-111,502.62-52,442.16

Finding the Fourth Proportional to 80,785.68, 111,502.62 and 52,442.16

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Solution

The fourth proportional to 80,785.68, 111,502.62 and 52,442.16 is: 72,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,785.68 : 111,502.62 = 52,442.16 : x
  2. Step 2: Convert to fraction form
    80,785.68/111,502.62 = 52,442.16/x
  3. Step 3: Cross multiply
    80,785.68x = 111,502.62 × 52,442.16
  4. Step 4: Simplify right side
    80,785.68x = 5,847,438,238.46
  5. Step 5: Solve for x
    x = 5,847,438,238.46/80,785.68
  6. Step 6: Final answer
    x = 72,382.11

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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.