Home / 54,185.76-81,278.64-19,103.04

Finding the Fourth Proportional to 54,185.76, 81,278.64 and 19,103.04

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Solution

The fourth proportional to 54,185.76, 81,278.64 and 19,103.04 is: 28,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,185.76 : 81,278.64 = 19,103.04 : x
  2. Step 2: Convert to fraction form
    54,185.76/81,278.64 = 19,103.04/x
  3. Step 3: Cross multiply
    54,185.76x = 81,278.64 × 19,103.04
  4. Step 4: Simplify right side
    54,185.76x = 1,552,669,111.07
  5. Step 5: Solve for x
    x = 1,552,669,111.07/54,185.76
  6. Step 6: Final answer
    x = 28,654.56

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1.5x scale

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.