Home / 79,451.24-119,176.80-20,286.92

Finding the Fourth Proportional to 79,451.24, 119,176.80 and 20,286.92

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Solution

The fourth proportional to 79,451.24, 119,176.80 and 20,286.92 is: 30,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,451.24 : 119,176.80 = 20,286.92 : x
  2. Step 2: Convert to fraction form
    79,451.24/119,176.80 = 20,286.92/x
  3. Step 3: Cross multiply
    79,451.24x = 119,176.80 × 20,286.92
  4. Step 4: Simplify right side
    79,451.24x = 2,417,730,207.46
  5. Step 5: Solve for x
    x = 2,417,730,207.46/79,451.24
  6. Step 6: Final answer
    x = 30,430.36

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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.