Home / 71,961.60-107,932.68-19,374.24

Finding the Fourth Proportional to 71,961.60, 107,932.68 and 19,374.24

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Solution

The fourth proportional to 71,961.60, 107,932.68 and 19,374.24 is: 29,058.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,961.60 : 107,932.68 = 19,374.24 : x
  2. Step 2: Convert to fraction form
    71,961.60/107,932.68 = 19,374.24/x
  3. Step 3: Cross multiply
    71,961.60x = 107,932.68 × 19,374.24
  4. Step 4: Simplify right side
    71,961.60x = 2,091,113,646.16
  5. Step 5: Solve for x
    x = 2,091,113,646.16/71,961.60
  6. Step 6: Final answer
    x = 29,058.74

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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.