Home / 75,371.09-103,942.67-51,208.22

Finding the Fourth Proportional to 75,371.09, 103,942.67 and 51,208.22

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Solution

The fourth proportional to 75,371.09, 103,942.67 and 51,208.22 is: 70,620.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,371.09 : 103,942.67 = 51,208.22 : x
  2. Step 2: Convert to fraction form
    75,371.09/103,942.67 = 51,208.22/x
  3. Step 3: Cross multiply
    75,371.09x = 103,942.67 × 51,208.22
  4. Step 4: Simplify right side
    75,371.09x = 5,322,719,112.75
  5. Step 5: Solve for x
    x = 5,322,719,112.75/75,371.09
  6. Step 6: Final answer
    x = 70,620.17

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1.5x scale

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.