Home / 80,849.89-111,576.30-45,039.93

Finding the Fourth Proportional to 80,849.89, 111,576.30 and 45,039.93

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Solution

The fourth proportional to 80,849.89, 111,576.30 and 45,039.93 is: 62,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,849.89 : 111,576.30 = 45,039.93 : x
  2. Step 2: Convert to fraction form
    80,849.89/111,576.30 = 45,039.93/x
  3. Step 3: Cross multiply
    80,849.89x = 111,576.30 × 45,039.93
  4. Step 4: Simplify right side
    80,849.89x = 5,025,388,741.66
  5. Step 5: Solve for x
    x = 5,025,388,741.66/80,849.89
  6. Step 6: Final answer
    x = 62,157.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.