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Finding the Fourth Proportional to 71,488.84, 98,659.26 and 41,279.80

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Solution

The fourth proportional to 71,488.84, 98,659.26 and 41,279.80 is: 56,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,488.84 : 98,659.26 = 41,279.80 : x
  2. Step 2: Convert to fraction form
    71,488.84/98,659.26 = 41,279.80/x
  3. Step 3: Cross multiply
    71,488.84x = 98,659.26 × 41,279.80
  4. Step 4: Simplify right side
    71,488.84x = 4,072,634,520.95
  5. Step 5: Solve for x
    x = 4,072,634,520.95/71,488.84
  6. Step 6: Final answer
    x = 56,968.82

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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.