Home / 87,450.20-120,699.20-55,612.94

Finding the Fourth Proportional to 87,450.20, 120,699.20 and 55,612.94

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Solution

The fourth proportional to 87,450.20, 120,699.20 and 55,612.94 is: 76,757.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,450.20 : 120,699.20 = 55,612.94 : x
  2. Step 2: Convert to fraction form
    87,450.20/120,699.20 = 55,612.94/x
  3. Step 3: Cross multiply
    87,450.20x = 120,699.20 × 55,612.94
  4. Step 4: Simplify right side
    87,450.20x = 6,712,437,367.65
  5. Step 5: Solve for x
    x = 6,712,437,367.65/87,450.20
  6. Step 6: Final answer
    x = 76,757.26

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1.5x scale

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.