Home / 53,761.89-80,662.56-18,711.57

Finding the Fourth Proportional to 53,761.89, 80,662.56 and 18,711.57

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Solution

The fourth proportional to 53,761.89, 80,662.56 and 18,711.57 is: 28,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,761.89 : 80,662.56 = 18,711.57 : x
  2. Step 2: Convert to fraction form
    53,761.89/80,662.56 = 18,711.57/x
  3. Step 3: Cross multiply
    53,761.89x = 80,662.56 × 18,711.57
  4. Step 4: Simplify right side
    53,761.89x = 1,509,323,137.82
  5. Step 5: Solve for x
    x = 1,509,323,137.82/53,761.89
  6. Step 6: Final answer
    x = 28,074.22

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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.