Home / 57,229.36-78,977.46-31,736.79

Finding the Fourth Proportional to 57,229.36, 78,977.46 and 31,736.79

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Solution

The fourth proportional to 57,229.36, 78,977.46 and 31,736.79 is: 43,797.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,229.36 : 78,977.46 = 31,736.79 : x
  2. Step 2: Convert to fraction form
    57,229.36/78,977.46 = 31,736.79/x
  3. Step 3: Cross multiply
    57,229.36x = 78,977.46 × 31,736.79
  4. Step 4: Simplify right side
    57,229.36x = 2,506,490,691.86
  5. Step 5: Solve for x
    x = 2,506,490,691.86/57,229.36
  6. Step 6: Final answer
    x = 43,797.29

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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.