Home / 54,169.47-81,242.19-39,385.35

Finding the Fourth Proportional to 54,169.47, 81,242.19 and 39,385.35

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Solution

The fourth proportional to 54,169.47, 81,242.19 and 39,385.35 is: 59,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,169.47 : 81,242.19 = 39,385.35 : x
  2. Step 2: Convert to fraction form
    54,169.47/81,242.19 = 39,385.35/x
  3. Step 3: Cross multiply
    54,169.47x = 81,242.19 × 39,385.35
  4. Step 4: Simplify right side
    54,169.47x = 3,199,752,087.92
  5. Step 5: Solve for x
    x = 3,199,752,087.92/54,169.47
  6. Step 6: Final answer
    x = 59,069.29

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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.