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Finding the Fourth Proportional to 79,605.62, 109,856.48 and 43,307.87

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Solution

The fourth proportional to 79,605.62, 109,856.48 and 43,307.87 is: 59,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,605.62 : 109,856.48 = 43,307.87 : x
  2. Step 2: Convert to fraction form
    79,605.62/109,856.48 = 43,307.87/x
  3. Step 3: Cross multiply
    79,605.62x = 109,856.48 × 43,307.87
  4. Step 4: Simplify right side
    79,605.62x = 4,757,649,388.68
  5. Step 5: Solve for x
    x = 4,757,649,388.68/79,605.62
  6. Step 6: Final answer
    x = 59,765.25

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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.