Home / 54,243.81-81,376.63-19,208.07

Finding the Fourth Proportional to 54,243.81, 81,376.63 and 19,208.07

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Solution

The fourth proportional to 54,243.81, 81,376.63 and 19,208.07 is: 28,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,243.81 : 81,376.63 = 19,208.07 : x
  2. Step 2: Convert to fraction form
    54,243.81/81,376.63 = 19,208.07/x
  3. Step 3: Cross multiply
    54,243.81x = 81,376.63 × 19,208.07
  4. Step 4: Simplify right side
    54,243.81x = 1,563,087,957.38
  5. Step 5: Solve for x
    x = 1,563,087,957.38/54,243.81
  6. Step 6: Final answer
    x = 28,815.97

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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.