Home / 79,268.10-109,308.33-55,386.06

Finding the Fourth Proportional to 79,268.10, 109,308.33 and 55,386.06

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Solution

The fourth proportional to 79,268.10, 109,308.33 and 55,386.06 is: 76,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.10 : 109,308.33 = 55,386.06 : x
  2. Step 2: Convert to fraction form
    79,268.10/109,308.33 = 55,386.06/x
  3. Step 3: Cross multiply
    79,268.10x = 109,308.33 × 55,386.06
  4. Step 4: Simplify right side
    79,268.10x = 6,054,157,723.88
  5. Step 5: Solve for x
    x = 6,054,157,723.88/79,268.10
  6. Step 6: Final answer
    x = 76,375.71

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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.