Home / 87,583.03-120,857.70-49,340.50

Finding the Fourth Proportional to 87,583.03, 120,857.70 and 49,340.50

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Solution

The fourth proportional to 87,583.03, 120,857.70 and 49,340.50 is: 68,086.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,583.03 : 120,857.70 = 49,340.50 : x
  2. Step 2: Convert to fraction form
    87,583.03/120,857.70 = 49,340.50/x
  3. Step 3: Cross multiply
    87,583.03x = 120,857.70 × 49,340.50
  4. Step 4: Simplify right side
    87,583.03x = 5,963,179,346.85
  5. Step 5: Solve for x
    x = 5,963,179,346.85/87,583.03
  6. Step 6: Final answer
    x = 68,086.01

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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.