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Finding the Fourth Proportional to 79,351.74, 119,027.07 and 20,186.88

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Solution

The fourth proportional to 79,351.74, 119,027.07 and 20,186.88 is: 30,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,351.74 : 119,027.07 = 20,186.88 : x
  2. Step 2: Convert to fraction form
    79,351.74/119,027.07 = 20,186.88/x
  3. Step 3: Cross multiply
    79,351.74x = 119,027.07 × 20,186.88
  4. Step 4: Simplify right side
    79,351.74x = 2,402,785,178.84
  5. Step 5: Solve for x
    x = 2,402,785,178.84/79,351.74
  6. Step 6: Final answer
    x = 30,280.18

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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.