Home / 53,671.87-80,519.42-20,392.56

Finding the Fourth Proportional to 53,671.87, 80,519.42 and 20,392.56

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Solution

The fourth proportional to 53,671.87, 80,519.42 and 20,392.56 is: 30,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,671.87 : 80,519.42 = 20,392.56 : x
  2. Step 2: Convert to fraction form
    53,671.87/80,519.42 = 20,392.56/x
  3. Step 3: Cross multiply
    53,671.87x = 80,519.42 × 20,392.56
  4. Step 4: Simplify right side
    53,671.87x = 1,641,997,039.79
  5. Step 5: Solve for x
    x = 1,641,997,039.79/53,671.87
  6. Step 6: Final answer
    x = 30,593.25

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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.