Home / 55,556.72-76,665.32-30,401.36

Finding the Fourth Proportional to 55,556.72, 76,665.32 and 30,401.36

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Solution

The fourth proportional to 55,556.72, 76,665.32 and 30,401.36 is: 41,952.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,556.72 : 76,665.32 = 30,401.36 : x
  2. Step 2: Convert to fraction form
    55,556.72/76,665.32 = 30,401.36/x
  3. Step 3: Cross multiply
    55,556.72x = 76,665.32 × 30,401.36
  4. Step 4: Simplify right side
    55,556.72x = 2,330,729,992.84
  5. Step 5: Solve for x
    x = 2,330,729,992.84/55,556.72
  6. Step 6: Final answer
    x = 41,952.26

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1.5x scale

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.