Home / 90,144.10-124,397.04-49,859.56

Finding the Fourth Proportional to 90,144.10, 124,397.04 and 49,859.56

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Solution

The fourth proportional to 90,144.10, 124,397.04 and 49,859.56 is: 68,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,144.10 : 124,397.04 = 49,859.56 : x
  2. Step 2: Convert to fraction form
    90,144.10/124,397.04 = 49,859.56/x
  3. Step 3: Cross multiply
    90,144.10x = 124,397.04 × 49,859.56
  4. Step 4: Simplify right side
    90,144.10x = 6,202,381,679.70
  5. Step 5: Solve for x
    x = 6,202,381,679.70/90,144.10
  6. Step 6: Final answer
    x = 68,805.19

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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.