Home / 75,117.73-103,662.49-41,128.38

Finding the Fourth Proportional to 75,117.73, 103,662.49 and 41,128.38

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Solution

The fourth proportional to 75,117.73, 103,662.49 and 41,128.38 is: 56,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,117.73 : 103,662.49 = 41,128.38 : x
  2. Step 2: Convert to fraction form
    75,117.73/103,662.49 = 41,128.38/x
  3. Step 3: Cross multiply
    75,117.73x = 103,662.49 × 41,128.38
  4. Step 4: Simplify right side
    75,117.73x = 4,263,470,280.47
  5. Step 5: Solve for x
    x = 4,263,470,280.47/75,117.73
  6. Step 6: Final answer
    x = 56,757.18

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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.