Home / 54,870.75-75,715.56-30,992.36

Finding the Fourth Proportional to 54,870.75, 75,715.56 and 30,992.36

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Solution

The fourth proportional to 54,870.75, 75,715.56 and 30,992.36 is: 42,766.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,870.75 : 75,715.56 = 30,992.36 : x
  2. Step 2: Convert to fraction form
    54,870.75/75,715.56 = 30,992.36/x
  3. Step 3: Cross multiply
    54,870.75x = 75,715.56 × 30,992.36
  4. Step 4: Simplify right side
    54,870.75x = 2,346,603,514.54
  5. Step 5: Solve for x
    x = 2,346,603,514.54/54,870.75
  6. Step 6: Final answer
    x = 42,766.02

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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.