Home / 85,255.28-127,878.30-26,090.96

Finding the Fourth Proportional to 85,255.28, 127,878.30 and 26,090.96

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Solution

The fourth proportional to 85,255.28, 127,878.30 and 26,090.96 is: 39,135.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,255.28 : 127,878.30 = 26,090.96 : x
  2. Step 2: Convert to fraction form
    85,255.28/127,878.30 = 26,090.96/x
  3. Step 3: Cross multiply
    85,255.28x = 127,878.30 × 26,090.96
  4. Step 4: Simplify right side
    85,255.28x = 3,336,467,610.17
  5. Step 5: Solve for x
    x = 3,336,467,610.17/85,255.28
  6. Step 6: Final answer
    x = 39,135.03

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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.