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Finding the Fourth Proportional to 71,851.90, 107,777.84 and 21,932.26

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Solution

The fourth proportional to 71,851.90, 107,777.84 and 21,932.26 is: 32,898.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,851.90 : 107,777.84 = 21,932.26 : x
  2. Step 2: Convert to fraction form
    71,851.90/107,777.84 = 21,932.26/x
  3. Step 3: Cross multiply
    71,851.90x = 107,777.84 × 21,932.26
  4. Step 4: Simplify right side
    71,851.90x = 2,363,811,609.12
  5. Step 5: Solve for x
    x = 2,363,811,609.12/71,851.90
  6. Step 6: Final answer
    x = 32,898.39

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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.