Home / 91,085.87-136,630.19-41,131.14

Finding the Fourth Proportional to 91,085.87, 136,630.19 and 41,131.14

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Solution

The fourth proportional to 91,085.87, 136,630.19 and 41,131.14 is: 61,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,085.87 : 136,630.19 = 41,131.14 : x
  2. Step 2: Convert to fraction form
    91,085.87/136,630.19 = 41,131.14/x
  3. Step 3: Cross multiply
    91,085.87x = 136,630.19 × 41,131.14
  4. Step 4: Simplify right side
    91,085.87x = 5,619,755,832.13
  5. Step 5: Solve for x
    x = 5,619,755,832.13/91,085.87
  6. Step 6: Final answer
    x = 61,697.34

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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.