Home / 57,188.78-85,793.96-21,660.74

Finding the Fourth Proportional to 57,188.78, 85,793.96 and 21,660.74

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Solution

The fourth proportional to 57,188.78, 85,793.96 and 21,660.74 is: 32,495.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,188.78 : 85,793.96 = 21,660.74 : x
  2. Step 2: Convert to fraction form
    57,188.78/85,793.96 = 21,660.74/x
  3. Step 3: Cross multiply
    57,188.78x = 85,793.96 × 21,660.74
  4. Step 4: Simplify right side
    57,188.78x = 1,858,360,608.04
  5. Step 5: Solve for x
    x = 1,858,360,608.04/57,188.78
  6. Step 6: Final answer
    x = 32,495.19

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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.