Home / 79,426.61-119,144.01-20,262.79

Finding the Fourth Proportional to 79,426.61, 119,144.01 and 20,262.79

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Solution

The fourth proportional to 79,426.61, 119,144.01 and 20,262.79 is: 30,395.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,426.61 : 119,144.01 = 20,262.79 : x
  2. Step 2: Convert to fraction form
    79,426.61/119,144.01 = 20,262.79/x
  3. Step 3: Cross multiply
    79,426.61x = 119,144.01 × 20,262.79
  4. Step 4: Simplify right side
    79,426.61x = 2,414,190,279.30
  5. Step 5: Solve for x
    x = 2,414,190,279.30/79,426.61
  6. Step 6: Final answer
    x = 30,395.23

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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.