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Finding the Fourth Proportional to 79,279.52, 109,407.22 and 43,467.38

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Solution

The fourth proportional to 79,279.52, 109,407.22 and 43,467.38 is: 59,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,279.52 : 109,407.22 = 43,467.38 : x
  2. Step 2: Convert to fraction form
    79,279.52/109,407.22 = 43,467.38/x
  3. Step 3: Cross multiply
    79,279.52x = 109,407.22 × 43,467.38
  4. Step 4: Simplify right side
    79,279.52x = 4,755,645,206.48
  5. Step 5: Solve for x
    x = 4,755,645,206.48/79,279.52
  6. Step 6: Final answer
    x = 59,985.80

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1.5x scale

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.