Home / 87,756.81-131,610.10-28,597.65

Finding the Fourth Proportional to 87,756.81, 131,610.10 and 28,597.65

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Solution

The fourth proportional to 87,756.81, 131,610.10 and 28,597.65 is: 42,888.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756.81 : 131,610.10 = 28,597.65 : x
  2. Step 2: Convert to fraction form
    87,756.81/131,610.10 = 28,597.65/x
  3. Step 3: Cross multiply
    87,756.81x = 131,610.10 × 28,597.65
  4. Step 4: Simplify right side
    87,756.81x = 3,763,739,576.27
  5. Step 5: Solve for x
    x = 3,763,739,576.27/87,756.81
  6. Step 6: Final answer
    x = 42,888.29

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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.