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Finding the Fourth Proportional to 71,851.77, 107,777.67 and 21,932.13

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Solution

The fourth proportional to 71,851.77, 107,777.67 and 21,932.13 is: 32,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,851.77 : 107,777.67 = 21,932.13 : x
  2. Step 2: Convert to fraction form
    71,851.77/107,777.67 = 21,932.13/x
  3. Step 3: Cross multiply
    71,851.77x = 107,777.67 × 21,932.13
  4. Step 4: Simplify right side
    71,851.77x = 2,363,793,869.54
  5. Step 5: Solve for x
    x = 2,363,793,869.54/71,851.77
  6. Step 6: Final answer
    x = 32,898.20

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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.