Home / 91,748.35-137,589.48-31,760.53

Finding the Fourth Proportional to 91,748.35, 137,589.48 and 31,760.53

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Solution

The fourth proportional to 91,748.35, 137,589.48 and 31,760.53 is: 47,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,748.35 : 137,589.48 = 31,760.53 : x
  2. Step 2: Convert to fraction form
    91,748.35/137,589.48 = 31,760.53/x
  3. Step 3: Cross multiply
    91,748.35x = 137,589.48 × 31,760.53
  4. Step 4: Simplify right side
    91,748.35x = 4,369,914,807.22
  5. Step 5: Solve for x
    x = 4,369,914,807.22/91,748.35
  6. Step 6: Final answer
    x = 47,629.36

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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.