Home / 55,136.08-82,731.46-21,855.40

Finding the Fourth Proportional to 55,136.08, 82,731.46 and 21,855.40

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Solution

The fourth proportional to 55,136.08, 82,731.46 and 21,855.40 is: 32,793.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,136.08 : 82,731.46 = 21,855.40 : x
  2. Step 2: Convert to fraction form
    55,136.08/82,731.46 = 21,855.40/x
  3. Step 3: Cross multiply
    55,136.08x = 82,731.46 × 21,855.40
  4. Step 4: Simplify right side
    55,136.08x = 1,808,129,150.88
  5. Step 5: Solve for x
    x = 1,808,129,150.88/55,136.08
  6. Step 6: Final answer
    x = 32,793.94

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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.