Home / 87,756.88-131,610.20-28,597.72

Finding the Fourth Proportional to 87,756.88, 131,610.20 and 28,597.72

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Solution

The fourth proportional to 87,756.88, 131,610.20 and 28,597.72 is: 42,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756.88 : 131,610.20 = 28,597.72 : x
  2. Step 2: Convert to fraction form
    87,756.88/131,610.20 = 28,597.72/x
  3. Step 3: Cross multiply
    87,756.88x = 131,610.20 × 28,597.72
  4. Step 4: Simplify right side
    87,756.88x = 3,763,751,648.74
  5. Step 5: Solve for x
    x = 3,763,751,648.74/87,756.88
  6. Step 6: Final answer
    x = 42,888.39

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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.