Home / 54,680.07-75,456.36-30,811.53

Finding the Fourth Proportional to 54,680.07, 75,456.36 and 30,811.53

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Solution

The fourth proportional to 54,680.07, 75,456.36 and 30,811.53 is: 42,518.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,680.07 : 75,456.36 = 30,811.53 : x
  2. Step 2: Convert to fraction form
    54,680.07/75,456.36 = 30,811.53/x
  3. Step 3: Cross multiply
    54,680.07x = 75,456.36 × 30,811.53
  4. Step 4: Simplify right side
    54,680.07x = 2,324,925,899.83
  5. Step 5: Solve for x
    x = 2,324,925,899.83/54,680.07
  6. Step 6: Final answer
    x = 42,518.71

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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.