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Finding the Fourth Proportional to 79,159.80, 109,241.10 and 43,353.12

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Solution

The fourth proportional to 79,159.80, 109,241.10 and 43,353.12 is: 59,827.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,159.80 : 109,241.10 = 43,353.12 : x
  2. Step 2: Convert to fraction form
    79,159.80/109,241.10 = 43,353.12/x
  3. Step 3: Cross multiply
    79,159.80x = 109,241.10 × 43,353.12
  4. Step 4: Simplify right side
    79,159.80x = 4,735,942,517.23
  5. Step 5: Solve for x
    x = 4,735,942,517.23/79,159.80
  6. Step 6: Final answer
    x = 59,827.62

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1.5x scale

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.