Home / 54,678.51-75,454.20-30,809.97

Finding the Fourth Proportional to 54,678.51, 75,454.20 and 30,809.97

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Solution

The fourth proportional to 54,678.51, 75,454.20 and 30,809.97 is: 42,516.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,678.51 : 75,454.20 = 30,809.97 : x
  2. Step 2: Convert to fraction form
    54,678.51/75,454.20 = 30,809.97/x
  3. Step 3: Cross multiply
    54,678.51x = 75,454.20 × 30,809.97
  4. Step 4: Simplify right side
    54,678.51x = 2,324,741,638.37
  5. Step 5: Solve for x
    x = 2,324,741,638.37/54,678.51
  6. Step 6: Final answer
    x = 42,516.55

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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.