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Finding the Fourth Proportional to 79,454.57, 109,647.95 and 43,645.37

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Solution

The fourth proportional to 79,454.57, 109,647.95 and 43,645.37 is: 60,230.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,454.57 : 109,647.95 = 43,645.37 : x
  2. Step 2: Convert to fraction form
    79,454.57/109,647.95 = 43,645.37/x
  3. Step 3: Cross multiply
    79,454.57x = 109,647.95 × 43,645.37
  4. Step 4: Simplify right side
    79,454.57x = 4,785,624,581.02
  5. Step 5: Solve for x
    x = 4,785,624,581.02/79,454.57
  6. Step 6: Final answer
    x = 60,230.96

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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.