Home / 57,939.20-86,973.60-54,132.20

Finding the Fourth Proportional to 57,939.20, 86,973.60 and 54,132.20

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Solution

The fourth proportional to 57,939.20, 86,973.60 and 54,132.20 is: 81,258.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,939.20 : 86,973.60 = 54,132.20 : x
  2. Step 2: Convert to fraction form
    57,939.20/86,973.60 = 54,132.20/x
  3. Step 3: Cross multiply
    57,939.20x = 86,973.60 × 54,132.20
  4. Step 4: Simplify right side
    57,939.20x = 4,708,072,309.92
  5. Step 5: Solve for x
    x = 4,708,072,309.92/57,939.20
  6. Step 6: Final answer
    x = 81,258.84

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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.