Home / 75,142.89-103,693.37-41,145.17

Finding the Fourth Proportional to 75,142.89, 103,693.37 and 41,145.17

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Solution

The fourth proportional to 75,142.89, 103,693.37 and 41,145.17 is: 56,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,142.89 : 103,693.37 = 41,145.17 : x
  2. Step 2: Convert to fraction form
    75,142.89/103,693.37 = 41,145.17/x
  3. Step 3: Cross multiply
    75,142.89x = 103,693.37 × 41,145.17
  4. Step 4: Simplify right side
    75,142.89x = 4,266,480,612.33
  5. Step 5: Solve for x
    x = 4,266,480,612.33/75,142.89
  6. Step 6: Final answer
    x = 56,778.23

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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.