Home / 55,021.96-75,930.78-29,871.52

Finding the Fourth Proportional to 55,021.96, 75,930.78 and 29,871.52

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Solution

The fourth proportional to 55,021.96, 75,930.78 and 29,871.52 is: 41,222.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,021.96 : 75,930.78 = 29,871.52 : x
  2. Step 2: Convert to fraction form
    55,021.96/75,930.78 = 29,871.52/x
  3. Step 3: Cross multiply
    55,021.96x = 75,930.78 × 29,871.52
  4. Step 4: Simplify right side
    55,021.96x = 2,268,167,813.39
  5. Step 5: Solve for x
    x = 2,268,167,813.39/55,021.96
  6. Step 6: Final answer
    x = 41,222.96

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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.