Home / 79,508.32-119,261.82-20,343.80

Finding the Fourth Proportional to 79,508.32, 119,261.82 and 20,343.80

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Solution

The fourth proportional to 79,508.32, 119,261.82 and 20,343.80 is: 30,515.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,508.32 : 119,261.82 = 20,343.80 : x
  2. Step 2: Convert to fraction form
    79,508.32/119,261.82 = 20,343.80/x
  3. Step 3: Cross multiply
    79,508.32x = 119,261.82 × 20,343.80
  4. Step 4: Simplify right side
    79,508.32x = 2,426,238,613.72
  5. Step 5: Solve for x
    x = 2,426,238,613.72/79,508.32
  6. Step 6: Final answer
    x = 30,515.53

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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.