Home / 54,585.72-81,916.16-19,047.24

Finding the Fourth Proportional to 54,585.72, 81,916.16 and 19,047.24

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Solution

The fourth proportional to 54,585.72, 81,916.16 and 19,047.24 is: 28,583.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,585.72 : 81,916.16 = 19,047.24 : x
  2. Step 2: Convert to fraction form
    54,585.72/81,916.16 = 19,047.24/x
  3. Step 3: Cross multiply
    54,585.72x = 81,916.16 × 19,047.24
  4. Step 4: Simplify right side
    54,585.72x = 1,560,276,759.40
  5. Step 5: Solve for x
    x = 1,560,276,759.40/54,585.72
  6. Step 6: Final answer
    x = 28,583.97

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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.