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Finding the Fourth Proportional to 80,970.92, 121,470.67 and 27,650.40

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Solution

The fourth proportional to 80,970.92, 121,470.67 and 27,650.40 is: 41,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,970.92 : 121,470.67 = 27,650.40 : x
  2. Step 2: Convert to fraction form
    80,970.92/121,470.67 = 27,650.40/x
  3. Step 3: Cross multiply
    80,970.92x = 121,470.67 × 27,650.40
  4. Step 4: Simplify right side
    80,970.92x = 3,358,712,613.77
  5. Step 5: Solve for x
    x = 3,358,712,613.77/80,970.92
  6. Step 6: Final answer
    x = 41,480.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.