Home / 75,872.36-104,743.21-55,431.47

Finding the Fourth Proportional to 75,872.36, 104,743.21 and 55,431.47

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Solution

The fourth proportional to 75,872.36, 104,743.21 and 55,431.47 is: 76,524.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,872.36 : 104,743.21 = 55,431.47 : x
  2. Step 2: Convert to fraction form
    75,872.36/104,743.21 = 55,431.47/x
  3. Step 3: Cross multiply
    75,872.36x = 104,743.21 × 55,431.47
  4. Step 4: Simplify right side
    75,872.36x = 5,806,070,226.10
  5. Step 5: Solve for x
    x = 5,806,070,226.10/75,872.36
  6. Step 6: Final answer
    x = 76,524.18

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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.