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Finding the Fourth Proportional to 79,171.68, 109,252.83 and 43,354.78

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Solution

The fourth proportional to 79,171.68, 109,252.83 and 43,354.78 is: 59,827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,171.68 : 109,252.83 = 43,354.78 : x
  2. Step 2: Convert to fraction form
    79,171.68/109,252.83 = 43,354.78/x
  3. Step 3: Cross multiply
    79,171.68x = 109,252.83 × 43,354.78
  4. Step 4: Simplify right side
    79,171.68x = 4,736,632,409.03
  5. Step 5: Solve for x
    x = 4,736,632,409.03/79,171.68
  6. Step 6: Final answer
    x = 59,827.36

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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.