Home / 91,537.76-137,328.56-38,200.07

Finding the Fourth Proportional to 91,537.76, 137,328.56 and 38,200.07

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Solution

The fourth proportional to 91,537.76, 137,328.56 and 38,200.07 is: 57,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,537.76 : 137,328.56 = 38,200.07 : x
  2. Step 2: Convert to fraction form
    91,537.76/137,328.56 = 38,200.07/x
  3. Step 3: Cross multiply
    91,537.76x = 137,328.56 × 38,200.07
  4. Step 4: Simplify right side
    91,537.76x = 5,245,961,115.45
  5. Step 5: Solve for x
    x = 5,245,961,115.45/91,537.76
  6. Step 6: Final answer
    x = 57,309.26

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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.