Home / 53,230.24-79,801.56-21,212.56

Finding the Fourth Proportional to 53,230.24, 79,801.56 and 21,212.56

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Solution

The fourth proportional to 53,230.24, 79,801.56 and 21,212.56 is: 31,801.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,230.24 : 79,801.56 = 21,212.56 : x
  2. Step 2: Convert to fraction form
    53,230.24/79,801.56 = 21,212.56/x
  3. Step 3: Cross multiply
    53,230.24x = 79,801.56 × 21,212.56
  4. Step 4: Simplify right side
    53,230.24x = 1,692,795,379.59
  5. Step 5: Solve for x
    x = 1,692,795,379.59/53,230.24
  6. Step 6: Final answer
    x = 31,801.39

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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.