Home / 75,274.78-103,793.52-61,619.38

Finding the Fourth Proportional to 75,274.78, 103,793.52 and 61,619.38

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Solution

The fourth proportional to 75,274.78, 103,793.52 and 61,619.38 is: 84,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,274.78 : 103,793.52 = 61,619.38 : x
  2. Step 2: Convert to fraction form
    75,274.78/103,793.52 = 61,619.38/x
  3. Step 3: Cross multiply
    75,274.78x = 103,793.52 × 61,619.38
  4. Step 4: Simplify right side
    75,274.78x = 6,395,692,350.42
  5. Step 5: Solve for x
    x = 6,395,692,350.42/75,274.78
  6. Step 6: Final answer
    x = 84,964.61

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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.