Home / 53,839.69-80,760.21-18,779.34

Finding the Fourth Proportional to 53,839.69, 80,760.21 and 18,779.34

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Solution

The fourth proportional to 53,839.69, 80,760.21 and 18,779.34 is: 28,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,839.69 : 80,760.21 = 18,779.34 : x
  2. Step 2: Convert to fraction form
    53,839.69/80,760.21 = 18,779.34/x
  3. Step 3: Cross multiply
    53,839.69x = 80,760.21 × 18,779.34
  4. Step 4: Simplify right side
    53,839.69x = 1,516,623,832.94
  5. Step 5: Solve for x
    x = 1,516,623,832.94/53,839.69
  6. Step 6: Final answer
    x = 28,169.25

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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.