Home / 90,229.36-124,515.48-49,943.20

Finding the Fourth Proportional to 90,229.36, 124,515.48 and 49,943.20

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Solution

The fourth proportional to 90,229.36, 124,515.48 and 49,943.20 is: 68,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,229.36 : 124,515.48 = 49,943.20 : x
  2. Step 2: Convert to fraction form
    90,229.36/124,515.48 = 49,943.20/x
  3. Step 3: Cross multiply
    90,229.36x = 124,515.48 × 49,943.20
  4. Step 4: Simplify right side
    90,229.36x = 6,218,701,520.74
  5. Step 5: Solve for x
    x = 6,218,701,520.74/90,229.36
  6. Step 6: Final answer
    x = 68,921.04

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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.