Home / 55,227.78-82,842.48-20,170.98

Finding the Fourth Proportional to 55,227.78, 82,842.48 and 20,170.98

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Solution

The fourth proportional to 55,227.78, 82,842.48 and 20,170.98 is: 30,256.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,227.78 : 82,842.48 = 20,170.98 : x
  2. Step 2: Convert to fraction form
    55,227.78/82,842.48 = 20,170.98/x
  3. Step 3: Cross multiply
    55,227.78x = 82,842.48 × 20,170.98
  4. Step 4: Simplify right side
    55,227.78x = 1,671,014,007.23
  5. Step 5: Solve for x
    x = 1,671,014,007.23/55,227.78
  6. Step 6: Final answer
    x = 30,256.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.