Home / 40,758.66-61,137.92-11,178.81

Finding the Fourth Proportional to 40,758.66, 61,137.92 and 11,178.81

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Solution

The fourth proportional to 40,758.66, 61,137.92 and 11,178.81 is: 16,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,758.66 : 61,137.92 = 11,178.81 : x
  2. Step 2: Convert to fraction form
    40,758.66/61,137.92 = 11,178.81/x
  3. Step 3: Cross multiply
    40,758.66x = 61,137.92 × 11,178.81
  4. Step 4: Simplify right side
    40,758.66x = 683,449,219.42
  5. Step 5: Solve for x
    x = 683,449,219.42/40,758.66
  6. Step 6: Final answer
    x = 16,768.20

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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.