Home / 40,164.78-55,435.20-23,180.06

Finding the Fourth Proportional to 40,164.78, 55,435.20 and 23,180.06

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Solution

The fourth proportional to 40,164.78, 55,435.20 and 23,180.06 is: 31,992.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,164.78 : 55,435.20 = 23,180.06 : x
  2. Step 2: Convert to fraction form
    40,164.78/55,435.20 = 23,180.06/x
  3. Step 3: Cross multiply
    40,164.78x = 55,435.20 × 23,180.06
  4. Step 4: Simplify right side
    40,164.78x = 1,284,991,262.11
  5. Step 5: Solve for x
    x = 1,284,991,262.11/40,164.78
  6. Step 6: Final answer
    x = 31,992.99

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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.