Home / 50,765.78-70,057.32-28,105.11

Finding the Fourth Proportional to 50,765.78, 70,057.32 and 28,105.11

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Solution

The fourth proportional to 50,765.78, 70,057.32 and 28,105.11 is: 38,785.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,765.78 : 70,057.32 = 28,105.11 : x
  2. Step 2: Convert to fraction form
    50,765.78/70,057.32 = 28,105.11/x
  3. Step 3: Cross multiply
    50,765.78x = 70,057.32 × 28,105.11
  4. Step 4: Simplify right side
    50,765.78x = 1,968,968,914.59
  5. Step 5: Solve for x
    x = 1,968,968,914.59/50,765.78
  6. Step 6: Final answer
    x = 38,785.36

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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.