Home / 87,219.10-130,500.60-57,694.60

Finding the Fourth Proportional to 87,219.10, 130,500.60 and 57,694.60

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Solution

The fourth proportional to 87,219.10, 130,500.60 and 57,694.60 is: 86,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,219.10 : 130,500.60 = 57,694.60 : x
  2. Step 2: Convert to fraction form
    87,219.10/130,500.60 = 57,694.60/x
  3. Step 3: Cross multiply
    87,219.10x = 130,500.60 × 57,694.60
  4. Step 4: Simplify right side
    87,219.10x = 7,529,179,916.76
  5. Step 5: Solve for x
    x = 7,529,179,916.76/87,219.10
  6. Step 6: Final answer
    x = 86,324.90

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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.