Home / 75,158.79-103,720.26-41,170.41

Finding the Fourth Proportional to 75,158.79, 103,720.26 and 41,170.41

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Solution

The fourth proportional to 75,158.79, 103,720.26 and 41,170.41 is: 56,815.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,158.79 : 103,720.26 = 41,170.41 : x
  2. Step 2: Convert to fraction form
    75,158.79/103,720.26 = 41,170.41/x
  3. Step 3: Cross multiply
    75,158.79x = 103,720.26 × 41,170.41
  4. Step 4: Simplify right side
    75,158.79x = 4,270,205,629.51
  5. Step 5: Solve for x
    x = 4,270,205,629.51/75,158.79
  6. Step 6: Final answer
    x = 56,815.78

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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.