Home / 53,208.12-79,805.64-13,761.90

Finding the Fourth Proportional to 53,208.12, 79,805.64 and 13,761.90

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Solution

The fourth proportional to 53,208.12, 79,805.64 and 13,761.90 is: 20,641.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,208.12 : 79,805.64 = 13,761.90 : x
  2. Step 2: Convert to fraction form
    53,208.12/79,805.64 = 13,761.90/x
  3. Step 3: Cross multiply
    53,208.12x = 79,805.64 × 13,761.90
  4. Step 4: Simplify right side
    53,208.12x = 1,098,277,237.12
  5. Step 5: Solve for x
    x = 1,098,277,237.12/53,208.12
  6. Step 6: Final answer
    x = 20,641.16

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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.