Home / 91,928.18-137,889.51-25,372.31

Finding the Fourth Proportional to 91,928.18, 137,889.51 and 25,372.31

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Solution

The fourth proportional to 91,928.18, 137,889.51 and 25,372.31 is: 38,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,928.18 : 137,889.51 = 25,372.31 : x
  2. Step 2: Convert to fraction form
    91,928.18/137,889.51 = 25,372.31/x
  3. Step 3: Cross multiply
    91,928.18x = 137,889.51 × 25,372.31
  4. Step 4: Simplify right side
    91,928.18x = 3,498,575,393.47
  5. Step 5: Solve for x
    x = 3,498,575,393.47/91,928.18
  6. Step 6: Final answer
    x = 38,057.70

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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.