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Finding the Fourth Proportional to 79,350.71, 119,026.76 and 20,186.44

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Solution

The fourth proportional to 79,350.71, 119,026.76 and 20,186.44 is: 30,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,350.71 : 119,026.76 = 20,186.44 : x
  2. Step 2: Convert to fraction form
    79,350.71/119,026.76 = 20,186.44/x
  3. Step 3: Cross multiply
    79,350.71x = 119,026.76 × 20,186.44
  4. Step 4: Simplify right side
    79,350.71x = 2,402,726,150.64
  5. Step 5: Solve for x
    x = 2,402,726,150.64/79,350.71
  6. Step 6: Final answer
    x = 30,279.83

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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.