Home / 80,431.76-120,663.36-24,276.44

Finding the Fourth Proportional to 80,431.76, 120,663.36 and 24,276.44

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Solution

The fourth proportional to 80,431.76, 120,663.36 and 24,276.44 is: 36,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,431.76 : 120,663.36 = 24,276.44 : x
  2. Step 2: Convert to fraction form
    80,431.76/120,663.36 = 24,276.44/x
  3. Step 3: Cross multiply
    80,431.76x = 120,663.36 × 24,276.44
  4. Step 4: Simplify right side
    80,431.76x = 2,929,276,215.92
  5. Step 5: Solve for x
    x = 2,929,276,215.92/80,431.76
  6. Step 6: Final answer
    x = 36,419.40

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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.