Home / 86,324.73-129,344.53-39,474.33

Finding the Fourth Proportional to 86,324.73, 129,344.53 and 39,474.33

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Solution

The fourth proportional to 86,324.73, 129,344.53 and 39,474.33 is: 59,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,324.73 : 129,344.53 = 39,474.33 : x
  2. Step 2: Convert to fraction form
    86,324.73/129,344.53 = 39,474.33/x
  3. Step 3: Cross multiply
    86,324.73x = 129,344.53 × 39,474.33
  4. Step 4: Simplify right side
    86,324.73x = 5,105,788,660.91
  5. Step 5: Solve for x
    x = 5,105,788,660.91/86,324.73
  6. Step 6: Final answer
    x = 59,146.30

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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.