Home / 83,401.53-125,102.55-20,221.38

Finding the Fourth Proportional to 83,401.53, 125,102.55 and 20,221.38

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Solution

The fourth proportional to 83,401.53, 125,102.55 and 20,221.38 is: 30,332.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,401.53 : 125,102.55 = 20,221.38 : x
  2. Step 2: Convert to fraction form
    83,401.53/125,102.55 = 20,221.38/x
  3. Step 3: Cross multiply
    83,401.53x = 125,102.55 × 20,221.38
  4. Step 4: Simplify right side
    83,401.53x = 2,529,746,202.52
  5. Step 5: Solve for x
    x = 2,529,746,202.52/83,401.53
  6. Step 6: Final answer
    x = 30,332.13

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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.