Home / 91,664.64-137,400.96-38,387.04

Finding the Fourth Proportional to 91,664.64, 137,400.96 and 38,387.04

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Solution

The fourth proportional to 91,664.64, 137,400.96 and 38,387.04 is: 57,540.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,664.64 : 137,400.96 = 38,387.04 : x
  2. Step 2: Convert to fraction form
    91,664.64/137,400.96 = 38,387.04/x
  3. Step 3: Cross multiply
    91,664.64x = 137,400.96 × 38,387.04
  4. Step 4: Simplify right side
    91,664.64x = 5,274,416,147.56
  5. Step 5: Solve for x
    x = 5,274,416,147.56/91,664.64
  6. Step 6: Final answer
    x = 57,540.36

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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.