Home / 90,546.28-124,919.58-66,729.76

Finding the Fourth Proportional to 90,546.28, 124,919.58 and 66,729.76

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Solution

The fourth proportional to 90,546.28, 124,919.58 and 66,729.76 is: 92,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,546.28 : 124,919.58 = 66,729.76 : x
  2. Step 2: Convert to fraction form
    90,546.28/124,919.58 = 66,729.76/x
  3. Step 3: Cross multiply
    90,546.28x = 124,919.58 × 66,729.76
  4. Step 4: Simplify right side
    90,546.28x = 8,335,853,592.70
  5. Step 5: Solve for x
    x = 8,335,853,592.70/90,546.28
  6. Step 6: Final answer
    x = 92,061.80

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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.