Home / 57,207.97-78,939.69-31,714.10

Finding the Fourth Proportional to 57,207.97, 78,939.69 and 31,714.10

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Solution

The fourth proportional to 57,207.97, 78,939.69 and 31,714.10 is: 43,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,207.97 : 78,939.69 = 31,714.10 : x
  2. Step 2: Convert to fraction form
    57,207.97/78,939.69 = 31,714.10/x
  3. Step 3: Cross multiply
    57,207.97x = 78,939.69 × 31,714.10
  4. Step 4: Simplify right side
    57,207.97x = 2,503,500,827.93
  5. Step 5: Solve for x
    x = 2,503,500,827.93/57,207.97
  6. Step 6: Final answer
    x = 43,761.40

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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.