Home / 83,620.43-115,397.03-45,380.30

Finding the Fourth Proportional to 83,620.43, 115,397.03 and 45,380.30

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Solution

The fourth proportional to 83,620.43, 115,397.03 and 45,380.30 is: 62,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620.43 : 115,397.03 = 45,380.30 : x
  2. Step 2: Convert to fraction form
    83,620.43/115,397.03 = 45,380.30/x
  3. Step 3: Cross multiply
    83,620.43x = 115,397.03 × 45,380.30
  4. Step 4: Simplify right side
    83,620.43x = 5,236,752,397.42
  5. Step 5: Solve for x
    x = 5,236,752,397.42/83,620.43
  6. Step 6: Final answer
    x = 62,625.28

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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.