Home / 83,434.01-125,149.68-20,254.64

Finding the Fourth Proportional to 83,434.01, 125,149.68 and 20,254.64

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Solution

The fourth proportional to 83,434.01, 125,149.68 and 20,254.64 is: 30,381.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,434.01 : 125,149.68 = 20,254.64 : x
  2. Step 2: Convert to fraction form
    83,434.01/125,149.68 = 20,254.64/x
  3. Step 3: Cross multiply
    83,434.01x = 125,149.68 × 20,254.64
  4. Step 4: Simplify right side
    83,434.01x = 2,534,861,714.52
  5. Step 5: Solve for x
    x = 2,534,861,714.52/83,434.01
  6. Step 6: Final answer
    x = 30,381.64

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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.