Home / 87,756.32-120,977.76-62,562.08

Finding the Fourth Proportional to 87,756.32, 120,977.76 and 62,562.08

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Solution

The fourth proportional to 87,756.32, 120,977.76 and 62,562.08 is: 86,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756.32 : 120,977.76 = 62,562.08 : x
  2. Step 2: Convert to fraction form
    87,756.32/120,977.76 = 62,562.08/x
  3. Step 3: Cross multiply
    87,756.32x = 120,977.76 × 62,562.08
  4. Step 4: Simplify right side
    87,756.32x = 7,568,620,299.34
  5. Step 5: Solve for x
    x = 7,568,620,299.34/87,756.32
  6. Step 6: Final answer
    x = 86,245.87

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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.