Home / 90,387.24-124,729.60-52,144.55

Finding the Fourth Proportional to 90,387.24, 124,729.60 and 52,144.55

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Solution

The fourth proportional to 90,387.24, 124,729.60 and 52,144.55 is: 71,956.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,387.24 : 124,729.60 = 52,144.55 : x
  2. Step 2: Convert to fraction form
    90,387.24/124,729.60 = 52,144.55/x
  3. Step 3: Cross multiply
    90,387.24x = 124,729.60 × 52,144.55
  4. Step 4: Simplify right side
    90,387.24x = 6,503,968,863.68
  5. Step 5: Solve for x
    x = 6,503,968,863.68/90,387.24
  6. Step 6: Final answer
    x = 71,956.71

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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.