Home / 86,351.33-129,544.45-36,431.53

Finding the Fourth Proportional to 86,351.33, 129,544.45 and 36,431.53

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Solution

The fourth proportional to 86,351.33, 129,544.45 and 36,431.53 is: 54,654.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,351.33 : 129,544.45 = 36,431.53 : x
  2. Step 2: Convert to fraction form
    86,351.33/129,544.45 = 36,431.53/x
  3. Step 3: Cross multiply
    86,351.33x = 129,544.45 × 36,431.53
  4. Step 4: Simplify right side
    86,351.33x = 4,719,502,101.57
  5. Step 5: Solve for x
    x = 4,719,502,101.57/86,351.33
  6. Step 6: Final answer
    x = 54,654.66

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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.