Home / 53,711.13-80,588.70-28,779.33

Finding the Fourth Proportional to 53,711.13, 80,588.70 and 28,779.33

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Solution

The fourth proportional to 53,711.13, 80,588.70 and 28,779.33 is: 43,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,711.13 : 80,588.70 = 28,779.33 : x
  2. Step 2: Convert to fraction form
    53,711.13/80,588.70 = 28,779.33/x
  3. Step 3: Cross multiply
    53,711.13x = 80,588.70 × 28,779.33
  4. Step 4: Simplify right side
    53,711.13x = 2,319,288,791.57
  5. Step 5: Solve for x
    x = 2,319,288,791.57/53,711.13
  6. Step 6: Final answer
    x = 43,180.79

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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.