Home / 55,377.78-76,421.33-30,227.28

Finding the Fourth Proportional to 55,377.78, 76,421.33 and 30,227.28

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Solution

The fourth proportional to 55,377.78, 76,421.33 and 30,227.28 is: 41,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,377.78 : 76,421.33 = 30,227.28 : x
  2. Step 2: Convert to fraction form
    55,377.78/76,421.33 = 30,227.28/x
  3. Step 3: Cross multiply
    55,377.78x = 76,421.33 × 30,227.28
  4. Step 4: Simplify right side
    55,377.78x = 2,310,008,788.75
  5. Step 5: Solve for x
    x = 2,310,008,788.75/55,377.78
  6. Step 6: Final answer
    x = 41,713.64

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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.