Home / 87,963.16-131,969.26-28,802.60

Finding the Fourth Proportional to 87,963.16, 131,969.26 and 28,802.60

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Solution

The fourth proportional to 87,963.16, 131,969.26 and 28,802.60 is: 43,211.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,963.16 : 131,969.26 = 28,802.60 : x
  2. Step 2: Convert to fraction form
    87,963.16/131,969.26 = 28,802.60/x
  3. Step 3: Cross multiply
    87,963.16x = 131,969.26 × 28,802.60
  4. Step 4: Simplify right side
    87,963.16x = 3,801,057,808.08
  5. Step 5: Solve for x
    x = 3,801,057,808.08/87,963.16
  6. Step 6: Final answer
    x = 43,211.93

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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.