Home / 86,279.33-129,412.78-27,131.92

Finding the Fourth Proportional to 86,279.33, 129,412.78 and 27,131.92

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Solution

The fourth proportional to 86,279.33, 129,412.78 and 27,131.92 is: 40,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,279.33 : 129,412.78 = 27,131.92 : x
  2. Step 2: Convert to fraction form
    86,279.33/129,412.78 = 27,131.92/x
  3. Step 3: Cross multiply
    86,279.33x = 129,412.78 × 27,131.92
  4. Step 4: Simplify right side
    86,279.33x = 3,511,216,802.58
  5. Step 5: Solve for x
    x = 3,511,216,802.58/86,279.33
  6. Step 6: Final answer
    x = 40,695.92

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1.5x scale

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.