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Finding the Fourth Proportional to 79,112.30, 109,176.00 and 43,301.54

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Solution

The fourth proportional to 79,112.30, 109,176.00 and 43,301.54 is: 59,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,112.30 : 109,176.00 = 43,301.54 : x
  2. Step 2: Convert to fraction form
    79,112.30/109,176.00 = 43,301.54/x
  3. Step 3: Cross multiply
    79,112.30x = 109,176.00 × 43,301.54
  4. Step 4: Simplify right side
    79,112.30x = 4,727,489,013.38
  5. Step 5: Solve for x
    x = 4,727,489,013.38/79,112.30
  6. Step 6: Final answer
    x = 59,756.69

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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.