Home / 83,449.40-125,172.71-20,270.03

Finding the Fourth Proportional to 83,449.40, 125,172.71 and 20,270.03

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Solution

The fourth proportional to 83,449.40, 125,172.71 and 20,270.03 is: 30,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,449.40 : 125,172.71 = 20,270.03 : x
  2. Step 2: Convert to fraction form
    83,449.40/125,172.71 = 20,270.03/x
  3. Step 3: Cross multiply
    83,449.40x = 125,172.71 × 20,270.03
  4. Step 4: Simplify right side
    83,449.40x = 2,537,253,859.67
  5. Step 5: Solve for x
    x = 2,537,253,859.67/83,449.40
  6. Step 6: Final answer
    x = 30,404.70

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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.