Home / 75,315.36-103,934.88-41,781.36

Finding the Fourth Proportional to 75,315.36, 103,934.88 and 41,781.36

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Solution

The fourth proportional to 75,315.36, 103,934.88 and 41,781.36 is: 57,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,315.36 : 103,934.88 = 41,781.36 : x
  2. Step 2: Convert to fraction form
    75,315.36/103,934.88 = 41,781.36/x
  3. Step 3: Cross multiply
    75,315.36x = 103,934.88 × 41,781.36
  4. Step 4: Simplify right side
    75,315.36x = 4,342,540,637.84
  5. Step 5: Solve for x
    x = 4,342,540,637.84/75,315.36
  6. Step 6: Final answer
    x = 57,658.10

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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.