Home / 54,653.27-81,979.93-42,191.49

Finding the Fourth Proportional to 54,653.27, 81,979.93 and 42,191.49

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Solution

The fourth proportional to 54,653.27, 81,979.93 and 42,191.49 is: 63,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653.27 : 81,979.93 = 42,191.49 : x
  2. Step 2: Convert to fraction form
    54,653.27/81,979.93 = 42,191.49/x
  3. Step 3: Cross multiply
    54,653.27x = 81,979.93 × 42,191.49
  4. Step 4: Simplify right side
    54,653.27x = 3,458,855,291.32
  5. Step 5: Solve for x
    x = 3,458,855,291.32/54,653.27
  6. Step 6: Final answer
    x = 63,287.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.