Home / 80,051.06-120,011.78-33,338.90

Finding the Fourth Proportional to 80,051.06, 120,011.78 and 33,338.90

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Solution

The fourth proportional to 80,051.06, 120,011.78 and 33,338.90 is: 49,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,051.06 : 120,011.78 = 33,338.90 : x
  2. Step 2: Convert to fraction form
    80,051.06/120,011.78 = 33,338.90/x
  3. Step 3: Cross multiply
    80,051.06x = 120,011.78 × 33,338.90
  4. Step 4: Simplify right side
    80,051.06x = 4,001,060,732.24
  5. Step 5: Solve for x
    x = 4,001,060,732.24/80,051.06
  6. Step 6: Final answer
    x = 49,981.36

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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.