Home / 75,138.08-103,691.83-41,146.03

Finding the Fourth Proportional to 75,138.08, 103,691.83 and 41,146.03

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Solution

The fourth proportional to 75,138.08, 103,691.83 and 41,146.03 is: 56,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,138.08 : 103,691.83 = 41,146.03 : x
  2. Step 2: Convert to fraction form
    75,138.08/103,691.83 = 41,146.03/x
  3. Step 3: Cross multiply
    75,138.08x = 103,691.83 × 41,146.03
  4. Step 4: Simplify right side
    75,138.08x = 4,266,507,147.93
  5. Step 5: Solve for x
    x = 4,266,507,147.93/75,138.08
  6. Step 6: Final answer
    x = 56,782.22

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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.