Home / 53,181.16-79,780.50-19,912.84

Finding the Fourth Proportional to 53,181.16, 79,780.50 and 19,912.84

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Solution

The fourth proportional to 53,181.16, 79,780.50 and 19,912.84 is: 29,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,181.16 : 79,780.50 = 19,912.84 : x
  2. Step 2: Convert to fraction form
    53,181.16/79,780.50 = 19,912.84/x
  3. Step 3: Cross multiply
    53,181.16x = 79,780.50 × 19,912.84
  4. Step 4: Simplify right side
    53,181.16x = 1,588,656,331.62
  5. Step 5: Solve for x
    x = 1,588,656,331.62/53,181.16
  6. Step 6: Final answer
    x = 29,872.54

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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.