Home / 80,288.10-120,438.38-24,123.82

Finding the Fourth Proportional to 80,288.10, 120,438.38 and 24,123.82

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Solution

The fourth proportional to 80,288.10, 120,438.38 and 24,123.82 is: 36,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,288.10 : 120,438.38 = 24,123.82 : x
  2. Step 2: Convert to fraction form
    80,288.10/120,438.38 = 24,123.82/x
  3. Step 3: Cross multiply
    80,288.10x = 120,438.38 × 24,123.82
  4. Step 4: Simplify right side
    80,288.10x = 2,905,433,800.21
  5. Step 5: Solve for x
    x = 2,905,433,800.21/80,288.10
  6. Step 6: Final answer
    x = 36,187.60

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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.