Home / 75,129.74-103,680.51-43,293.26

Finding the Fourth Proportional to 75,129.74, 103,680.51 and 43,293.26

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Solution

The fourth proportional to 75,129.74, 103,680.51 and 43,293.26 is: 59,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,129.74 : 103,680.51 = 43,293.26 : x
  2. Step 2: Convert to fraction form
    75,129.74/103,680.51 = 43,293.26/x
  3. Step 3: Cross multiply
    75,129.74x = 103,680.51 × 43,293.26
  4. Step 4: Simplify right side
    75,129.74x = 4,488,667,276.36
  5. Step 5: Solve for x
    x = 4,488,667,276.36/75,129.74
  6. Step 6: Final answer
    x = 59,745.55

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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.