Home / 87,107.83-120,260.34-54,870.09

Finding the Fourth Proportional to 87,107.83, 120,260.34 and 54,870.09

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Solution

The fourth proportional to 87,107.83, 120,260.34 and 54,870.09 is: 75,753.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,107.83 : 120,260.34 = 54,870.09 : x
  2. Step 2: Convert to fraction form
    87,107.83/120,260.34 = 54,870.09/x
  3. Step 3: Cross multiply
    87,107.83x = 120,260.34 × 54,870.09
  4. Step 4: Simplify right side
    87,107.83x = 6,598,694,803.58
  5. Step 5: Solve for x
    x = 6,598,694,803.58/87,107.83
  6. Step 6: Final answer
    x = 75,753.18

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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.