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Finding the Fourth Proportional to 79,334.78, 109,491.69 and 45,344.70

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Solution

The fourth proportional to 79,334.78, 109,491.69 and 45,344.70 is: 62,581.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,334.78 : 109,491.69 = 45,344.70 : x
  2. Step 2: Convert to fraction form
    79,334.78/109,491.69 = 45,344.70/x
  3. Step 3: Cross multiply
    79,334.78x = 109,491.69 × 45,344.70
  4. Step 4: Simplify right side
    79,334.78x = 4,964,867,835.54
  5. Step 5: Solve for x
    x = 4,964,867,835.54/79,334.78
  6. Step 6: Final answer
    x = 62,581.23

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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.