Home / 87,622.76-131,446.02-28,439.32

Finding the Fourth Proportional to 87,622.76, 131,446.02 and 28,439.32

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Solution

The fourth proportional to 87,622.76, 131,446.02 and 28,439.32 is: 42,662.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,622.76 : 131,446.02 = 28,439.32 : x
  2. Step 2: Convert to fraction form
    87,622.76/131,446.02 = 28,439.32/x
  3. Step 3: Cross multiply
    87,622.76x = 131,446.02 × 28,439.32
  4. Step 4: Simplify right side
    87,622.76x = 3,738,235,425.51
  5. Step 5: Solve for x
    x = 3,738,235,425.51/87,622.76
  6. Step 6: Final answer
    x = 42,662.84

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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.