Home / 79,089.91-109,144.09-43,279.93

Finding the Fourth Proportional to 79,089.91, 109,144.09 and 43,279.93

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Solution

The fourth proportional to 79,089.91, 109,144.09 and 43,279.93 is: 59,726.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,089.91 : 109,144.09 = 43,279.93 : x
  2. Step 2: Convert to fraction form
    79,089.91/109,144.09 = 43,279.93/x
  3. Step 3: Cross multiply
    79,089.91x = 109,144.09 × 43,279.93
  4. Step 4: Simplify right side
    79,089.91x = 4,723,747,921.19
  5. Step 5: Solve for x
    x = 4,723,747,921.19/79,089.91
  6. Step 6: Final answer
    x = 59,726.30

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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.