Home / 75,137.25-103,689.41-41,605.41

Finding the Fourth Proportional to 75,137.25, 103,689.41 and 41,605.41

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Solution

The fourth proportional to 75,137.25, 103,689.41 and 41,605.41 is: 57,415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,137.25 : 103,689.41 = 41,605.41 : x
  2. Step 2: Convert to fraction form
    75,137.25/103,689.41 = 41,605.41/x
  3. Step 3: Cross multiply
    75,137.25x = 103,689.41 × 41,605.41
  4. Step 4: Simplify right side
    75,137.25x = 4,314,040,415.71
  5. Step 5: Solve for x
    x = 4,314,040,415.71/75,137.25
  6. Step 6: Final answer
    x = 57,415.47

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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.