Home / 57,208.20-85,803.12-15,645.48

Finding the Fourth Proportional to 57,208.20, 85,803.12 and 15,645.48

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Solution

The fourth proportional to 57,208.20, 85,803.12 and 15,645.48 is: 23,465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.20 : 85,803.12 = 15,645.48 : x
  2. Step 2: Convert to fraction form
    57,208.20/85,803.12 = 15,645.48/x
  3. Step 3: Cross multiply
    57,208.20x = 85,803.12 × 15,645.48
  4. Step 4: Simplify right side
    57,208.20x = 1,342,430,997.90
  5. Step 5: Solve for x
    x = 1,342,430,997.90/57,208.20
  6. Step 6: Final answer
    x = 23,465.71

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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.