Home / 75,481.66-104,162.44-43,215.21

Finding the Fourth Proportional to 75,481.66, 104,162.44 and 43,215.21

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Solution

The fourth proportional to 75,481.66, 104,162.44 and 43,215.21 is: 59,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,481.66 : 104,162.44 = 43,215.21 : x
  2. Step 2: Convert to fraction form
    75,481.66/104,162.44 = 43,215.21/x
  3. Step 3: Cross multiply
    75,481.66x = 104,162.44 × 43,215.21
  4. Step 4: Simplify right side
    75,481.66x = 4,501,400,981.82
  5. Step 5: Solve for x
    x = 4,501,400,981.82/75,481.66
  6. Step 6: Final answer
    x = 59,635.70

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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.