Home / 54,345.09-74,917.47-38,163.11

Finding the Fourth Proportional to 54,345.09, 74,917.47 and 38,163.11

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Solution

The fourth proportional to 54,345.09, 74,917.47 and 38,163.11 is: 52,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,345.09 : 74,917.47 = 38,163.11 : x
  2. Step 2: Convert to fraction form
    54,345.09/74,917.47 = 38,163.11/x
  3. Step 3: Cross multiply
    54,345.09x = 74,917.47 × 38,163.11
  4. Step 4: Simplify right side
    54,345.09x = 2,859,083,273.94
  5. Step 5: Solve for x
    x = 2,859,083,273.94/54,345.09
  6. Step 6: Final answer
    x = 52,609.78

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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.