Home / 75,126.43-103,670.52-41,128.39

Finding the Fourth Proportional to 75,126.43, 103,670.52 and 41,128.39

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Solution

The fourth proportional to 75,126.43, 103,670.52 and 41,128.39 is: 56,755.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,126.43 : 103,670.52 = 41,128.39 : x
  2. Step 2: Convert to fraction form
    75,126.43/103,670.52 = 41,128.39/x
  3. Step 3: Cross multiply
    75,126.43x = 103,670.52 × 41,128.39
  4. Step 4: Simplify right side
    75,126.43x = 4,263,801,578.06
  5. Step 5: Solve for x
    x = 4,263,801,578.06/75,126.43
  6. Step 6: Final answer
    x = 56,755.01

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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.