Home / 87,372.78-131,075.46-28,202.28

Finding the Fourth Proportional to 87,372.78, 131,075.46 and 28,202.28

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Solution

The fourth proportional to 87,372.78, 131,075.46 and 28,202.28 is: 42,308.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,372.78 : 131,075.46 = 28,202.28 : x
  2. Step 2: Convert to fraction form
    87,372.78/131,075.46 = 28,202.28/x
  3. Step 3: Cross multiply
    87,372.78x = 131,075.46 × 28,202.28
  4. Step 4: Simplify right side
    87,372.78x = 3,696,626,824.05
  5. Step 5: Solve for x
    x = 3,696,626,824.05/87,372.78
  6. Step 6: Final answer
    x = 42,308.68

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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.