Home / 52,581.97-78,873.16-13,139.12

Finding the Fourth Proportional to 52,581.97, 78,873.16 and 13,139.12

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Solution

The fourth proportional to 52,581.97, 78,873.16 and 13,139.12 is: 19,708.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,581.97 : 78,873.16 = 13,139.12 : x
  2. Step 2: Convert to fraction form
    52,581.97/78,873.16 = 13,139.12/x
  3. Step 3: Cross multiply
    52,581.97x = 78,873.16 × 13,139.12
  4. Step 4: Simplify right side
    52,581.97x = 1,036,324,078.35
  5. Step 5: Solve for x
    x = 1,036,324,078.35/52,581.97
  6. Step 6: Final answer
    x = 19,708.74

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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.