Home / 90,105.60-124,336.22-49,812.86

Finding the Fourth Proportional to 90,105.60, 124,336.22 and 49,812.86

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Solution

The fourth proportional to 90,105.60, 124,336.22 and 49,812.86 is: 68,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,105.60 : 124,336.22 = 49,812.86 : x
  2. Step 2: Convert to fraction form
    90,105.60/124,336.22 = 49,812.86/x
  3. Step 3: Cross multiply
    90,105.60x = 124,336.22 × 49,812.86
  4. Step 4: Simplify right side
    90,105.60x = 6,193,541,849.04
  5. Step 5: Solve for x
    x = 6,193,541,849.04/90,105.60
  6. Step 6: Final answer
    x = 68,736.48

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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.