Home / 83,430.05-125,144.01-20,250.66

Finding the Fourth Proportional to 83,430.05, 125,144.01 and 20,250.66

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Solution

The fourth proportional to 83,430.05, 125,144.01 and 20,250.66 is: 30,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,430.05 : 125,144.01 = 20,250.66 : x
  2. Step 2: Convert to fraction form
    83,430.05/125,144.01 = 20,250.66/x
  3. Step 3: Cross multiply
    83,430.05x = 125,144.01 × 20,250.66
  4. Step 4: Simplify right side
    83,430.05x = 2,534,248,797.55
  5. Step 5: Solve for x
    x = 2,534,248,797.55/83,430.05
  6. Step 6: Final answer
    x = 30,375.73

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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.