Home / 57,731.60-86,581.20-18,300.80

Finding the Fourth Proportional to 57,731.60, 86,581.20 and 18,300.80

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Solution

The fourth proportional to 57,731.60, 86,581.20 and 18,300.80 is: 27,446.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,731.60 : 86,581.20 = 18,300.80 : x
  2. Step 2: Convert to fraction form
    57,731.60/86,581.20 = 18,300.80/x
  3. Step 3: Cross multiply
    57,731.60x = 86,581.20 × 18,300.80
  4. Step 4: Simplify right side
    57,731.60x = 1,584,505,224.96
  5. Step 5: Solve for x
    x = 1,584,505,224.96/57,731.60
  6. Step 6: Final answer
    x = 27,446.06

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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.