Home / 91,131.11-136,700.80-27,946.61

Finding the Fourth Proportional to 91,131.11, 136,700.80 and 27,946.61

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Solution

The fourth proportional to 91,131.11, 136,700.80 and 27,946.61 is: 41,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,131.11 : 136,700.80 = 27,946.61 : x
  2. Step 2: Convert to fraction form
    91,131.11/136,700.80 = 27,946.61/x
  3. Step 3: Cross multiply
    91,131.11x = 136,700.80 × 27,946.61
  4. Step 4: Simplify right side
    91,131.11x = 3,820,323,190.92
  5. Step 5: Solve for x
    x = 3,820,323,190.92/91,131.11
  6. Step 6: Final answer
    x = 41,921.18

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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.