Home / 90,121.60-124,362.76-49,832.92

Finding the Fourth Proportional to 90,121.60, 124,362.76 and 49,832.92

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Solution

The fourth proportional to 90,121.60, 124,362.76 and 49,832.92 is: 68,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,121.60 : 124,362.76 = 49,832.92 : x
  2. Step 2: Convert to fraction form
    90,121.60/124,362.76 = 49,832.92/x
  3. Step 3: Cross multiply
    90,121.60x = 124,362.76 × 49,832.92
  4. Step 4: Simplify right side
    90,121.60x = 6,197,359,470.06
  5. Step 5: Solve for x
    x = 6,197,359,470.06/90,121.60
  6. Step 6: Final answer
    x = 68,766.64

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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.