Home / 83,613.43-125,387.46-30,292.75

Finding the Fourth Proportional to 83,613.43, 125,387.46 and 30,292.75

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Solution

The fourth proportional to 83,613.43, 125,387.46 and 30,292.75 is: 45,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,613.43 : 125,387.46 = 30,292.75 : x
  2. Step 2: Convert to fraction form
    83,613.43/125,387.46 = 30,292.75/x
  3. Step 3: Cross multiply
    83,613.43x = 125,387.46 × 30,292.75
  4. Step 4: Simplify right side
    83,613.43x = 3,798,330,978.92
  5. Step 5: Solve for x
    x = 3,798,330,978.92/83,613.43
  6. Step 6: Final answer
    x = 45,427.28

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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.