Home / 40,764.15-61,139.68-11,175.12

Finding the Fourth Proportional to 40,764.15, 61,139.68 and 11,175.12

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Solution

The fourth proportional to 40,764.15, 61,139.68 and 11,175.12 is: 16,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,764.15 : 61,139.68 = 11,175.12 : x
  2. Step 2: Convert to fraction form
    40,764.15/61,139.68 = 11,175.12/x
  3. Step 3: Cross multiply
    40,764.15x = 61,139.68 × 11,175.12
  4. Step 4: Simplify right side
    40,764.15x = 683,243,232.82
  5. Step 5: Solve for x
    x = 683,243,232.82/40,764.15
  6. Step 6: Final answer
    x = 16,760.89

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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.