Home / 57,712.10-86,568.15-18,273.20

Finding the Fourth Proportional to 57,712.10, 86,568.15 and 18,273.20

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Solution

The fourth proportional to 57,712.10, 86,568.15 and 18,273.20 is: 27,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712.10 : 86,568.15 = 18,273.20 : x
  2. Step 2: Convert to fraction form
    57,712.10/86,568.15 = 18,273.20/x
  3. Step 3: Cross multiply
    57,712.10x = 86,568.15 × 18,273.20
  4. Step 4: Simplify right side
    57,712.10x = 1,581,877,118.58
  5. Step 5: Solve for x
    x = 1,581,877,118.58/57,712.10
  6. Step 6: Final answer
    x = 27,409.80

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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.