Home / 87,747.81-131,621.61-28,583.39

Finding the Fourth Proportional to 87,747.81, 131,621.61 and 28,583.39

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Solution

The fourth proportional to 87,747.81, 131,621.61 and 28,583.39 is: 42,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,747.81 : 131,621.61 = 28,583.39 : x
  2. Step 2: Convert to fraction form
    87,747.81/131,621.61 = 28,583.39/x
  3. Step 3: Cross multiply
    87,747.81x = 131,621.61 × 28,583.39
  4. Step 4: Simplify right side
    87,747.81x = 3,762,191,260.14
  5. Step 5: Solve for x
    x = 3,762,191,260.14/87,747.81
  6. Step 6: Final answer
    x = 42,875.04

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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.