Home / 79,040.22-109,119.51-54,877.02

Finding the Fourth Proportional to 79,040.22, 109,119.51 and 54,877.02

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Solution

The fourth proportional to 79,040.22, 109,119.51 and 54,877.02 is: 75,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,040.22 : 109,119.51 = 54,877.02 : x
  2. Step 2: Convert to fraction form
    79,040.22/109,119.51 = 54,877.02/x
  3. Step 3: Cross multiply
    79,040.22x = 109,119.51 × 54,877.02
  4. Step 4: Simplify right side
    79,040.22x = 5,988,153,532.66
  5. Step 5: Solve for x
    x = 5,988,153,532.66/79,040.22
  6. Step 6: Final answer
    x = 75,760.84

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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.