Home / 87,261.33-120,420.57-49,535.58

Finding the Fourth Proportional to 87,261.33, 120,420.57 and 49,535.58

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Solution

The fourth proportional to 87,261.33, 120,420.57 and 49,535.58 is: 68,359.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,261.33 : 120,420.57 = 49,535.58 : x
  2. Step 2: Convert to fraction form
    87,261.33/120,420.57 = 49,535.58/x
  3. Step 3: Cross multiply
    87,261.33x = 120,420.57 × 49,535.58
  4. Step 4: Simplify right side
    87,261.33x = 5,965,103,416.22
  5. Step 5: Solve for x
    x = 5,965,103,416.22/87,261.33
  6. Step 6: Final answer
    x = 68,359.07

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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.