Home / 62,719.40-86,593.30-38,871.38

Finding the Fourth Proportional to 62,719.40, 86,593.30 and 38,871.38

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Solution

The fourth proportional to 62,719.40, 86,593.30 and 38,871.38 is: 53,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,719.40 : 86,593.30 = 38,871.38 : x
  2. Step 2: Convert to fraction form
    62,719.40/86,593.30 = 38,871.38/x
  3. Step 3: Cross multiply
    62,719.40x = 86,593.30 × 38,871.38
  4. Step 4: Simplify right side
    62,719.40x = 3,366,000,539.61
  5. Step 5: Solve for x
    x = 3,366,000,539.61/62,719.40
  6. Step 6: Final answer
    x = 53,667.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.