Home / 57,769.20-86,572.80-45,943.20

Finding the Fourth Proportional to 57,769.20, 86,572.80 and 45,943.20

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Solution

The fourth proportional to 57,769.20, 86,572.80 and 45,943.20 is: 68,850.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,769.20 : 86,572.80 = 45,943.20 : x
  2. Step 2: Convert to fraction form
    57,769.20/86,572.80 = 45,943.20/x
  3. Step 3: Cross multiply
    57,769.20x = 86,572.80 × 45,943.20
  4. Step 4: Simplify right side
    57,769.20x = 3,977,431,464.96
  5. Step 5: Solve for x
    x = 3,977,431,464.96/57,769.20
  6. Step 6: Final answer
    x = 68,850.38

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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.