Home / 55,481.63-76,564.64-30,331.13

Finding the Fourth Proportional to 55,481.63, 76,564.64 and 30,331.13

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Solution

The fourth proportional to 55,481.63, 76,564.64 and 30,331.13 is: 41,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,481.63 : 76,564.64 = 30,331.13 : x
  2. Step 2: Convert to fraction form
    55,481.63/76,564.64 = 30,331.13/x
  3. Step 3: Cross multiply
    55,481.63x = 76,564.64 × 30,331.13
  4. Step 4: Simplify right side
    55,481.63x = 2,322,291,742.25
  5. Step 5: Solve for x
    x = 2,322,291,742.25/55,481.63
  6. Step 6: Final answer
    x = 41,856.95

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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.