Home / 83,430.97-125,145.37-20,251.60

Finding the Fourth Proportional to 83,430.97, 125,145.37 and 20,251.60

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Solution

The fourth proportional to 83,430.97, 125,145.37 and 20,251.60 is: 30,377.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,430.97 : 125,145.37 = 20,251.60 : x
  2. Step 2: Convert to fraction form
    83,430.97/125,145.37 = 20,251.60/x
  3. Step 3: Cross multiply
    83,430.97x = 125,145.37 × 20,251.60
  4. Step 4: Simplify right side
    83,430.97x = 2,534,393,611.60
  5. Step 5: Solve for x
    x = 2,534,393,611.60/83,430.97
  6. Step 6: Final answer
    x = 30,377.13

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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.