Home / 75,132.78-112,520.27-43,476.12

Finding the Fourth Proportional to 75,132.78, 112,520.27 and 43,476.12

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Solution

The fourth proportional to 75,132.78, 112,520.27 and 43,476.12 is: 65,110.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,132.78 : 112,520.27 = 43,476.12 : x
  2. Step 2: Convert to fraction form
    75,132.78/112,520.27 = 43,476.12/x
  3. Step 3: Cross multiply
    75,132.78x = 112,520.27 × 43,476.12
  4. Step 4: Simplify right side
    75,132.78x = 4,891,944,543.57
  5. Step 5: Solve for x
    x = 4,891,944,543.57/75,132.78
  6. Step 6: Final answer
    x = 65,110.66

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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.