Home / 57,479.05-86,213.44-20,032.75

Finding the Fourth Proportional to 57,479.05, 86,213.44 and 20,032.75

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Solution

The fourth proportional to 57,479.05, 86,213.44 and 20,032.75 is: 30,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,479.05 : 86,213.44 = 20,032.75 : x
  2. Step 2: Convert to fraction form
    57,479.05/86,213.44 = 20,032.75/x
  3. Step 3: Cross multiply
    57,479.05x = 86,213.44 × 20,032.75
  4. Step 4: Simplify right side
    57,479.05x = 1,727,092,290.16
  5. Step 5: Solve for x
    x = 1,727,092,290.16/57,479.05
  6. Step 6: Final answer
    x = 30,047.34

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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.