Home / 85,004.64-127,502.64-25,839

Finding the Fourth Proportional to 85,004.64, 127,502.64 and 25,839

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Solution

The fourth proportional to 85,004.64, 127,502.64 and 25,839 is: 38,757.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,004.64 : 127,502.64 = 25,839 : x
  2. Step 2: Convert to fraction form
    85,004.64/127,502.64 = 25,839/x
  3. Step 3: Cross multiply
    85,004.64x = 127,502.64 × 25,839
  4. Step 4: Simplify right side
    85,004.64x = 3,294,540,714.96
  5. Step 5: Solve for x
    x = 3,294,540,714.96/85,004.64
  6. Step 6: Final answer
    x = 38,757.19

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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.