Home / 90,191.09-124,463.85-49,906.55

Finding the Fourth Proportional to 90,191.09, 124,463.85 and 49,906.55

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Solution

The fourth proportional to 90,191.09, 124,463.85 and 49,906.55 is: 68,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,191.09 : 124,463.85 = 49,906.55 : x
  2. Step 2: Convert to fraction form
    90,191.09/124,463.85 = 49,906.55/x
  3. Step 3: Cross multiply
    90,191.09x = 124,463.85 × 49,906.55
  4. Step 4: Simplify right side
    90,191.09x = 6,211,561,353.22
  5. Step 5: Solve for x
    x = 6,211,561,353.22/90,191.09
  6. Step 6: Final answer
    x = 68,871.12

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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.