Home / 57,113.72-85,676.28-19,668.82

Finding the Fourth Proportional to 57,113.72, 85,676.28 and 19,668.82

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Solution

The fourth proportional to 57,113.72, 85,676.28 and 19,668.82 is: 29,505.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,113.72 : 85,676.28 = 19,668.82 : x
  2. Step 2: Convert to fraction form
    57,113.72/85,676.28 = 19,668.82/x
  3. Step 3: Cross multiply
    57,113.72x = 85,676.28 × 19,668.82
  4. Step 4: Simplify right side
    57,113.72x = 1,685,151,329.59
  5. Step 5: Solve for x
    x = 1,685,151,329.59/57,113.72
  6. Step 6: Final answer
    x = 29,505.19

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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.