Home / 75,196.62-112,785.03-35,778.78

Finding the Fourth Proportional to 75,196.62, 112,785.03 and 35,778.78

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Solution

The fourth proportional to 75,196.62, 112,785.03 and 35,778.78 is: 53,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,196.62 : 112,785.03 = 35,778.78 : x
  2. Step 2: Convert to fraction form
    75,196.62/112,785.03 = 35,778.78/x
  3. Step 3: Cross multiply
    75,196.62x = 112,785.03 × 35,778.78
  4. Step 4: Simplify right side
    75,196.62x = 4,035,310,775.66
  5. Step 5: Solve for x
    x = 4,035,310,775.66/75,196.62
  6. Step 6: Final answer
    x = 53,663.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.