Home / 87,172.94-120,294.72-53,176.03

Finding the Fourth Proportional to 87,172.94, 120,294.72 and 53,176.03

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Solution

The fourth proportional to 87,172.94, 120,294.72 and 53,176.03 is: 73,380.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,172.94 : 120,294.72 = 53,176.03 : x
  2. Step 2: Convert to fraction form
    87,172.94/120,294.72 = 53,176.03/x
  3. Step 3: Cross multiply
    87,172.94x = 120,294.72 × 53,176.03
  4. Step 4: Simplify right side
    87,172.94x = 6,396,795,338.82
  5. Step 5: Solve for x
    x = 6,396,795,338.82/87,172.94
  6. Step 6: Final answer
    x = 73,380.51

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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.