Home / 75,129.56-103,674.81-41,131.55

Finding the Fourth Proportional to 75,129.56, 103,674.81 and 41,131.55

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Solution

The fourth proportional to 75,129.56, 103,674.81 and 41,131.55 is: 56,759.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,129.56 : 103,674.81 = 41,131.55 : x
  2. Step 2: Convert to fraction form
    75,129.56/103,674.81 = 41,131.55/x
  3. Step 3: Cross multiply
    75,129.56x = 103,674.81 × 41,131.55
  4. Step 4: Simplify right side
    75,129.56x = 4,264,305,631.26
  5. Step 5: Solve for x
    x = 4,264,305,631.26/75,129.56
  6. Step 6: Final answer
    x = 56,759.36

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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.