Home / 54,248.94-81,385.83-20,969.28

Finding the Fourth Proportional to 54,248.94, 81,385.83 and 20,969.28

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Solution

The fourth proportional to 54,248.94, 81,385.83 and 20,969.28 is: 31,458.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,248.94 : 81,385.83 = 20,969.28 : x
  2. Step 2: Convert to fraction form
    54,248.94/81,385.83 = 20,969.28/x
  3. Step 3: Cross multiply
    54,248.94x = 81,385.83 × 20,969.28
  4. Step 4: Simplify right side
    54,248.94x = 1,706,602,257.30
  5. Step 5: Solve for x
    x = 1,706,602,257.30/54,248.94
  6. Step 6: Final answer
    x = 31,458.72

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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.