Home / 91,851.12-137,773.44-29,520

Finding the Fourth Proportional to 91,851.12, 137,773.44 and 29,520

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Solution

The fourth proportional to 91,851.12, 137,773.44 and 29,520 is: 44,278.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,851.12 : 137,773.44 = 29,520 : x
  2. Step 2: Convert to fraction form
    91,851.12/137,773.44 = 29,520/x
  3. Step 3: Cross multiply
    91,851.12x = 137,773.44 × 29,520
  4. Step 4: Simplify right side
    91,851.12x = 4,067,071,948.80
  5. Step 5: Solve for x
    x = 4,067,071,948.80/91,851.12
  6. Step 6: Final answer
    x = 44,278.96

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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.