Home / 75,112.77-103,655.88-41,121.57

Finding the Fourth Proportional to 75,112.77, 103,655.88 and 41,121.57

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Solution

The fourth proportional to 75,112.77, 103,655.88 and 41,121.57 is: 56,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,112.77 : 103,655.88 = 41,121.57 : x
  2. Step 2: Convert to fraction form
    75,112.77/103,655.88 = 41,121.57/x
  3. Step 3: Cross multiply
    75,112.77x = 103,655.88 × 41,121.57
  4. Step 4: Simplify right side
    75,112.77x = 4,262,492,525.33
  5. Step 5: Solve for x
    x = 4,262,492,525.33/75,112.77
  6. Step 6: Final answer
    x = 56,747.91

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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.