Home / 55,112-76,054.38-29,961.32

Finding the Fourth Proportional to 55,112, 76,054.38 and 29,961.32

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Solution

The fourth proportional to 55,112, 76,054.38 and 29,961.32 is: 41,346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,112 : 76,054.38 = 29,961.32 : x
  2. Step 2: Convert to fraction form
    55,112/76,054.38 = 29,961.32/x
  3. Step 3: Cross multiply
    55,112x = 76,054.38 × 29,961.32
  4. Step 4: Simplify right side
    55,112x = 2,278,689,616.58
  5. Step 5: Solve for x
    x = 2,278,689,616.58/55,112
  6. Step 6: Final answer
    x = 41,346.52

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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.