Home / 75,675.61-103,676.09-72,837.97

Finding the Fourth Proportional to 75,675.61, 103,676.09 and 72,837.97

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Solution

The fourth proportional to 75,675.61, 103,676.09 and 72,837.97 is: 99,788.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,675.61 : 103,676.09 = 72,837.97 : x
  2. Step 2: Convert to fraction form
    75,675.61/103,676.09 = 72,837.97/x
  3. Step 3: Cross multiply
    75,675.61x = 103,676.09 × 72,837.97
  4. Step 4: Simplify right side
    75,675.61x = 7,551,555,568.95
  5. Step 5: Solve for x
    x = 7,551,555,568.95/75,675.61
  6. Step 6: Final answer
    x = 99,788.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.