Home / 87,579.38-120,859.68-49,853.63

Finding the Fourth Proportional to 87,579.38, 120,859.68 and 49,853.63

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Solution

The fourth proportional to 87,579.38, 120,859.68 and 49,853.63 is: 68,798.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,579.38 : 120,859.68 = 49,853.63 : x
  2. Step 2: Convert to fraction form
    87,579.38/120,859.68 = 49,853.63/x
  3. Step 3: Cross multiply
    87,579.38x = 120,859.68 × 49,853.63
  4. Step 4: Simplify right side
    87,579.38x = 6,025,293,164.34
  5. Step 5: Solve for x
    x = 6,025,293,164.34/87,579.38
  6. Step 6: Final answer
    x = 68,798.08

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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.