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Finding the Fourth Proportional to 80,881.80, 121,301.10 and 24,721.80

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Solution

The fourth proportional to 80,881.80, 121,301.10 and 24,721.80 is: 37,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,881.80 : 121,301.10 = 24,721.80 : x
  2. Step 2: Convert to fraction form
    80,881.80/121,301.10 = 24,721.80/x
  3. Step 3: Cross multiply
    80,881.80x = 121,301.10 × 24,721.80
  4. Step 4: Simplify right side
    80,881.80x = 2,998,781,533.98
  5. Step 5: Solve for x
    x = 2,998,781,533.98/80,881.80
  6. Step 6: Final answer
    x = 37,076.10

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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.