Home / 55,876.68-83,779.98-20,787.48

Finding the Fourth Proportional to 55,876.68, 83,779.98 and 20,787.48

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Solution

The fourth proportional to 55,876.68, 83,779.98 and 20,787.48 is: 31,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,876.68 : 83,779.98 = 20,787.48 : x
  2. Step 2: Convert to fraction form
    55,876.68/83,779.98 = 20,787.48/x
  3. Step 3: Cross multiply
    55,876.68x = 83,779.98 × 20,787.48
  4. Step 4: Simplify right side
    55,876.68x = 1,741,574,658.65
  5. Step 5: Solve for x
    x = 1,741,574,658.65/55,876.68
  6. Step 6: Final answer
    x = 31,168.18

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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.