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Finding the Fourth Proportional to 79,171.14, 109,258.80 and 43,363.14

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Solution

The fourth proportional to 79,171.14, 109,258.80 and 43,363.14 is: 59,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,171.14 : 109,258.80 = 43,363.14 : x
  2. Step 2: Convert to fraction form
    79,171.14/109,258.80 = 43,363.14/x
  3. Step 3: Cross multiply
    79,171.14x = 109,258.80 × 43,363.14
  4. Step 4: Simplify right side
    79,171.14x = 4,737,804,640.63
  5. Step 5: Solve for x
    x = 4,737,804,640.63/79,171.14
  6. Step 6: Final answer
    x = 59,842.57

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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.