Home / 45,399.10-68,110.80-40,502.65

Finding the Fourth Proportional to 45,399.10, 68,110.80 and 40,502.65

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Solution

The fourth proportional to 45,399.10, 68,110.80 and 40,502.65 is: 60,764.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,399.10 : 68,110.80 = 40,502.65 : x
  2. Step 2: Convert to fraction form
    45,399.10/68,110.80 = 40,502.65/x
  3. Step 3: Cross multiply
    45,399.10x = 68,110.80 × 40,502.65
  4. Step 4: Simplify right side
    45,399.10x = 2,758,667,893.62
  5. Step 5: Solve for x
    x = 2,758,667,893.62/45,399.10
  6. Step 6: Final answer
    x = 60,764.81

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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.