Home / 40,078.26-55,308.22-22,173.90

Finding the Fourth Proportional to 40,078.26, 55,308.22 and 22,173.90

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Solution

The fourth proportional to 40,078.26, 55,308.22 and 22,173.90 is: 30,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.26 : 55,308.22 = 22,173.90 : x
  2. Step 2: Convert to fraction form
    40,078.26/55,308.22 = 22,173.90/x
  3. Step 3: Cross multiply
    40,078.26x = 55,308.22 × 22,173.90
  4. Step 4: Simplify right side
    40,078.26x = 1,226,398,939.46
  5. Step 5: Solve for x
    x = 1,226,398,939.46/40,078.26
  6. Step 6: Final answer
    x = 30,600.10

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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.