Home / 57,195.69-85,776.33-21,645.09

Finding the Fourth Proportional to 57,195.69, 85,776.33 and 21,645.09

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Solution

The fourth proportional to 57,195.69, 85,776.33 and 21,645.09 is: 32,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,195.69 : 85,776.33 = 21,645.09 : x
  2. Step 2: Convert to fraction form
    57,195.69/85,776.33 = 21,645.09/x
  3. Step 3: Cross multiply
    57,195.69x = 85,776.33 × 21,645.09
  4. Step 4: Simplify right side
    57,195.69x = 1,856,636,463.89
  5. Step 5: Solve for x
    x = 1,856,636,463.89/57,195.69
  6. Step 6: Final answer
    x = 32,461.13

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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.