Home / 55,556.38-76,669.64-30,405.88

Finding the Fourth Proportional to 55,556.38, 76,669.64 and 30,405.88

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Solution

The fourth proportional to 55,556.38, 76,669.64 and 30,405.88 is: 41,961.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,556.38 : 76,669.64 = 30,405.88 : x
  2. Step 2: Convert to fraction form
    55,556.38/76,669.64 = 30,405.88/x
  3. Step 3: Cross multiply
    55,556.38x = 76,669.64 × 30,405.88
  4. Step 4: Simplify right side
    55,556.38x = 2,331,207,873.48
  5. Step 5: Solve for x
    x = 2,331,207,873.48/55,556.38
  6. Step 6: Final answer
    x = 41,961.12

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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.