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Finding the Fourth Proportional to 79,469.65, 109,670.12 and 43,663

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Solution

The fourth proportional to 79,469.65, 109,670.12 and 43,663 is: 60,256.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,469.65 : 109,670.12 = 43,663 : x
  2. Step 2: Convert to fraction form
    79,469.65/109,670.12 = 43,663/x
  3. Step 3: Cross multiply
    79,469.65x = 109,670.12 × 43,663
  4. Step 4: Simplify right side
    79,469.65x = 4,788,526,449.56
  5. Step 5: Solve for x
    x = 4,788,526,449.56/79,469.65
  6. Step 6: Final answer
    x = 60,256.04

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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.