Home / 90,163.56-124,423.38-49,876.20

Finding the Fourth Proportional to 90,163.56, 124,423.38 and 49,876.20

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Solution

The fourth proportional to 90,163.56, 124,423.38 and 49,876.20 is: 68,827.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,163.56 : 124,423.38 = 49,876.20 : x
  2. Step 2: Convert to fraction form
    90,163.56/124,423.38 = 49,876.20/x
  3. Step 3: Cross multiply
    90,163.56x = 124,423.38 × 49,876.20
  4. Step 4: Simplify right side
    90,163.56x = 6,205,765,385.56
  5. Step 5: Solve for x
    x = 6,205,765,385.56/90,163.56
  6. Step 6: Final answer
    x = 68,827.87

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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.