Home / 57,713.10-86,548.05-20,258.70

Finding the Fourth Proportional to 57,713.10, 86,548.05 and 20,258.70

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Solution

The fourth proportional to 57,713.10, 86,548.05 and 20,258.70 is: 30,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,713.10 : 86,548.05 = 20,258.70 : x
  2. Step 2: Convert to fraction form
    57,713.10/86,548.05 = 20,258.70/x
  3. Step 3: Cross multiply
    57,713.10x = 86,548.05 × 20,258.70
  4. Step 4: Simplify right side
    57,713.10x = 1,753,350,980.54
  5. Step 5: Solve for x
    x = 1,753,350,980.54/57,713.10
  6. Step 6: Final answer
    x = 30,380.47

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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.