Home / 80,498.40-120,764.64-24,342.72

Finding the Fourth Proportional to 80,498.40, 120,764.64 and 24,342.72

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Solution

The fourth proportional to 80,498.40, 120,764.64 and 24,342.72 is: 36,519.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,498.40 : 120,764.64 = 24,342.72 : x
  2. Step 2: Convert to fraction form
    80,498.40/120,764.64 = 24,342.72/x
  3. Step 3: Cross multiply
    80,498.40x = 120,764.64 × 24,342.72
  4. Step 4: Simplify right side
    80,498.40x = 2,939,739,817.42
  5. Step 5: Solve for x
    x = 2,939,739,817.42/80,498.40
  6. Step 6: Final answer
    x = 36,519.23

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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.