Home / 53,215.65-79,793.10-19,936.80

Finding the Fourth Proportional to 53,215.65, 79,793.10 and 19,936.80

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Solution

The fourth proportional to 53,215.65, 79,793.10 and 19,936.80 is: 29,893.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,215.65 : 79,793.10 = 19,936.80 : x
  2. Step 2: Convert to fraction form
    53,215.65/79,793.10 = 19,936.80/x
  3. Step 3: Cross multiply
    53,215.65x = 79,793.10 × 19,936.80
  4. Step 4: Simplify right side
    53,215.65x = 1,590,819,076.08
  5. Step 5: Solve for x
    x = 1,590,819,076.08/53,215.65
  6. Step 6: Final answer
    x = 29,893.82

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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.