Home / 91,813.31-137,720.57-25,260.47

Finding the Fourth Proportional to 91,813.31, 137,720.57 and 25,260.47

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Solution

The fourth proportional to 91,813.31, 137,720.57 and 25,260.47 is: 37,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,813.31 : 137,720.57 = 25,260.47 : x
  2. Step 2: Convert to fraction form
    91,813.31/137,720.57 = 25,260.47/x
  3. Step 3: Cross multiply
    91,813.31x = 137,720.57 × 25,260.47
  4. Step 4: Simplify right side
    91,813.31x = 3,478,885,511.96
  5. Step 5: Solve for x
    x = 3,478,885,511.96/91,813.31
  6. Step 6: Final answer
    x = 37,890.86

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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.