Home / 80,276.80-120,429.11-26,973.98

Finding the Fourth Proportional to 80,276.80, 120,429.11 and 26,973.98

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Solution

The fourth proportional to 80,276.80, 120,429.11 and 26,973.98 is: 40,465.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,276.80 : 120,429.11 = 26,973.98 : x
  2. Step 2: Convert to fraction form
    80,276.80/120,429.11 = 26,973.98/x
  3. Step 3: Cross multiply
    80,276.80x = 120,429.11 × 26,973.98
  4. Step 4: Simplify right side
    80,276.80x = 3,248,451,819.75
  5. Step 5: Solve for x
    x = 3,248,451,819.75/80,276.80
  6. Step 6: Final answer
    x = 40,465.64

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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.