Home / 79,736.40-110,016.36-51,408

Finding the Fourth Proportional to 79,736.40, 110,016.36 and 51,408

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Solution

The fourth proportional to 79,736.40, 110,016.36 and 51,408 is: 70,930.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,736.40 : 110,016.36 = 51,408 : x
  2. Step 2: Convert to fraction form
    79,736.40/110,016.36 = 51,408/x
  3. Step 3: Cross multiply
    79,736.40x = 110,016.36 × 51,408
  4. Step 4: Simplify right side
    79,736.40x = 5,655,721,034.88
  5. Step 5: Solve for x
    x = 5,655,721,034.88/79,736.40
  6. Step 6: Final answer
    x = 70,930.23

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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.