Home / 87,396.82-120,616.86-53,425.19

Finding the Fourth Proportional to 87,396.82, 120,616.86 and 53,425.19

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Solution

The fourth proportional to 87,396.82, 120,616.86 and 53,425.19 is: 73,732.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,396.82 : 120,616.86 = 53,425.19 : x
  2. Step 2: Convert to fraction form
    87,396.82/120,616.86 = 53,425.19/x
  3. Step 3: Cross multiply
    87,396.82x = 120,616.86 × 53,425.19
  4. Step 4: Simplify right side
    87,396.82x = 6,443,978,662.70
  5. Step 5: Solve for x
    x = 6,443,978,662.70/87,396.82
  6. Step 6: Final answer
    x = 73,732.42

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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.