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Finding the Fourth Proportional to 75,339.72, 103,970.13 and 41,351.39

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Solution

The fourth proportional to 75,339.72, 103,970.13 and 41,351.39 is: 57,065.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,339.72 : 103,970.13 = 41,351.39 : x
  2. Step 2: Convert to fraction form
    75,339.72/103,970.13 = 41,351.39/x
  3. Step 3: Cross multiply
    75,339.72x = 103,970.13 × 41,351.39
  4. Step 4: Simplify right side
    75,339.72x = 4,299,309,049.14
  5. Step 5: Solve for x
    x = 4,299,309,049.14/75,339.72
  6. Step 6: Final answer
    x = 57,065.64

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1.5x scale

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.