Home / 91,377.12-137,080.08-29,061.60

Finding the Fourth Proportional to 91,377.12, 137,080.08 and 29,061.60

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Solution

The fourth proportional to 91,377.12, 137,080.08 and 29,061.60 is: 43,596.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,377.12 : 137,080.08 = 29,061.60 : x
  2. Step 2: Convert to fraction form
    91,377.12/137,080.08 = 29,061.60/x
  3. Step 3: Cross multiply
    91,377.12x = 137,080.08 × 29,061.60
  4. Step 4: Simplify right side
    91,377.12x = 3,983,766,452.93
  5. Step 5: Solve for x
    x = 3,983,766,452.93/91,377.12
  6. Step 6: Final answer
    x = 43,596.98

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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.