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Finding the Fourth Proportional to 79,448.67, 119,171.18 and 39,995.19

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Solution

The fourth proportional to 79,448.67, 119,171.18 and 39,995.19 is: 59,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,448.67 : 119,171.18 = 39,995.19 : x
  2. Step 2: Convert to fraction form
    79,448.67/119,171.18 = 39,995.19/x
  3. Step 3: Cross multiply
    79,448.67x = 119,171.18 × 39,995.19
  4. Step 4: Simplify right side
    79,448.67x = 4,766,274,086.61
  5. Step 5: Solve for x
    x = 4,766,274,086.61/79,448.67
  6. Step 6: Final answer
    x = 59,991.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.