Home / 85,148.64-127,742.82-25,984.20

Finding the Fourth Proportional to 85,148.64, 127,742.82 and 25,984.20

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Solution

The fourth proportional to 85,148.64, 127,742.82 and 25,984.20 is: 38,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,148.64 : 127,742.82 = 25,984.20 : x
  2. Step 2: Convert to fraction form
    85,148.64/127,742.82 = 25,984.20/x
  3. Step 3: Cross multiply
    85,148.64x = 127,742.82 × 25,984.20
  4. Step 4: Simplify right side
    85,148.64x = 3,319,294,983.44
  5. Step 5: Solve for x
    x = 3,319,294,983.44/85,148.64
  6. Step 6: Final answer
    x = 38,982.36

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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.