Home / 87,907.20-131,856.56-28,735.04

Finding the Fourth Proportional to 87,907.20, 131,856.56 and 28,735.04

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Solution

The fourth proportional to 87,907.20, 131,856.56 and 28,735.04 is: 43,101.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,907.20 : 131,856.56 = 28,735.04 : x
  2. Step 2: Convert to fraction form
    87,907.20/131,856.56 = 28,735.04/x
  3. Step 3: Cross multiply
    87,907.20x = 131,856.56 × 28,735.04
  4. Step 4: Simplify right side
    87,907.20x = 3,788,903,525.86
  5. Step 5: Solve for x
    x = 3,788,903,525.86/87,907.20
  6. Step 6: Final answer
    x = 43,101.17

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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.