Home / 55,916.71-83,872.33-20,853.64

Finding the Fourth Proportional to 55,916.71, 83,872.33 and 20,853.64

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Solution

The fourth proportional to 55,916.71, 83,872.33 and 20,853.64 is: 31,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,916.71 : 83,872.33 = 20,853.64 : x
  2. Step 2: Convert to fraction form
    55,916.71/83,872.33 = 20,853.64/x
  3. Step 3: Cross multiply
    55,916.71x = 83,872.33 × 20,853.64
  4. Step 4: Simplify right side
    55,916.71x = 1,749,042,956.42
  5. Step 5: Solve for x
    x = 1,749,042,956.42/55,916.71
  6. Step 6: Final answer
    x = 31,279.43

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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.