Home / 48,131.78-66,395.20-27,986.44

Finding the Fourth Proportional to 48,131.78, 66,395.20 and 27,986.44

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Solution

The fourth proportional to 48,131.78, 66,395.20 and 27,986.44 is: 38,605.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,131.78 : 66,395.20 = 27,986.44 : x
  2. Step 2: Convert to fraction form
    48,131.78/66,395.20 = 27,986.44/x
  3. Step 3: Cross multiply
    48,131.78x = 66,395.20 × 27,986.44
  4. Step 4: Simplify right side
    48,131.78x = 1,858,165,045.13
  5. Step 5: Solve for x
    x = 1,858,165,045.13/48,131.78
  6. Step 6: Final answer
    x = 38,605.78

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1.5x scale

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.