Home / 85,112.88-127,683.16-25,147.44

Finding the Fourth Proportional to 85,112.88, 127,683.16 and 25,147.44

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Solution

The fourth proportional to 85,112.88, 127,683.16 and 25,147.44 is: 37,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,112.88 : 127,683.16 = 25,147.44 : x
  2. Step 2: Convert to fraction form
    85,112.88/127,683.16 = 25,147.44/x
  3. Step 3: Cross multiply
    85,112.88x = 127,683.16 × 25,147.44
  4. Step 4: Simplify right side
    85,112.88x = 3,210,904,605.11
  5. Step 5: Solve for x
    x = 3,210,904,605.11/85,112.88
  6. Step 6: Final answer
    x = 37,725.25

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1.5x scale

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.