Home / 57,114.24-78,821.28-31,965.60

Finding the Fourth Proportional to 57,114.24, 78,821.28 and 31,965.60

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Solution

The fourth proportional to 57,114.24, 78,821.28 and 31,965.60 is: 44,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,114.24 : 78,821.28 = 31,965.60 : x
  2. Step 2: Convert to fraction form
    57,114.24/78,821.28 = 31,965.60/x
  3. Step 3: Cross multiply
    57,114.24x = 78,821.28 × 31,965.60
  4. Step 4: Simplify right side
    57,114.24x = 2,519,569,507.97
  5. Step 5: Solve for x
    x = 2,519,569,507.97/57,114.24
  6. Step 6: Final answer
    x = 44,114.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.