Home / 75,345.11-103,936.60-57,408.96

Finding the Fourth Proportional to 75,345.11, 103,936.60 and 57,408.96

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Solution

The fourth proportional to 75,345.11, 103,936.60 and 57,408.96 is: 79,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,345.11 : 103,936.60 = 57,408.96 : x
  2. Step 2: Convert to fraction form
    75,345.11/103,936.60 = 57,408.96/x
  3. Step 3: Cross multiply
    75,345.11x = 103,936.60 × 57,408.96
  4. Step 4: Simplify right side
    75,345.11x = 5,966,892,111.94
  5. Step 5: Solve for x
    x = 5,966,892,111.94/75,345.11
  6. Step 6: Final answer
    x = 79,194.15

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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.