Home / 86,696.20-129,947.10-36,767.80

Finding the Fourth Proportional to 86,696.20, 129,947.10 and 36,767.80

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Solution

The fourth proportional to 86,696.20, 129,947.10 and 36,767.80 is: 55,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,696.20 : 129,947.10 = 36,767.80 : x
  2. Step 2: Convert to fraction form
    86,696.20/129,947.10 = 36,767.80/x
  3. Step 3: Cross multiply
    86,696.20x = 129,947.10 × 36,767.80
  4. Step 4: Simplify right side
    86,696.20x = 4,777,868,983.38
  5. Step 5: Solve for x
    x = 4,777,868,983.38/86,696.20
  6. Step 6: Final answer
    x = 55,110.48

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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.