Home / 87,130.82-130,485.72-49,577.12

Finding the Fourth Proportional to 87,130.82, 130,485.72 and 49,577.12

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Solution

The fourth proportional to 87,130.82, 130,485.72 and 49,577.12 is: 74,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,130.82 : 130,485.72 = 49,577.12 : x
  2. Step 2: Convert to fraction form
    87,130.82/130,485.72 = 49,577.12/x
  3. Step 3: Cross multiply
    87,130.82x = 130,485.72 × 49,577.12
  4. Step 4: Simplify right side
    87,130.82x = 6,469,106,198.73
  5. Step 5: Solve for x
    x = 6,469,106,198.73/87,130.82
  6. Step 6: Final answer
    x = 74,245.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.