Home / 75,255.20-103,856.84-41,721.20

Finding the Fourth Proportional to 75,255.20, 103,856.84 and 41,721.20

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Solution

The fourth proportional to 75,255.20, 103,856.84 and 41,721.20 is: 57,577.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,255.20 : 103,856.84 = 41,721.20 : x
  2. Step 2: Convert to fraction form
    75,255.20/103,856.84 = 41,721.20/x
  3. Step 3: Cross multiply
    75,255.20x = 103,856.84 × 41,721.20
  4. Step 4: Simplify right side
    75,255.20x = 4,333,031,993.01
  5. Step 5: Solve for x
    x = 4,333,031,993.01/75,255.20
  6. Step 6: Final answer
    x = 57,577.84

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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.