Home / 86,186.34-129,281.13-27,020.70

Finding the Fourth Proportional to 86,186.34, 129,281.13 and 27,020.70

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Solution

The fourth proportional to 86,186.34, 129,281.13 and 27,020.70 is: 40,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,186.34 : 129,281.13 = 27,020.70 : x
  2. Step 2: Convert to fraction form
    86,186.34/129,281.13 = 27,020.70/x
  3. Step 3: Cross multiply
    86,186.34x = 129,281.13 × 27,020.70
  4. Step 4: Simplify right side
    86,186.34x = 3,493,266,629.39
  5. Step 5: Solve for x
    x = 3,493,266,629.39/86,186.34
  6. Step 6: Final answer
    x = 40,531.56

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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.