Home / 53,847.40-80,780.34-20,570.44

Finding the Fourth Proportional to 53,847.40, 80,780.34 and 20,570.44

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Solution

The fourth proportional to 53,847.40, 80,780.34 and 20,570.44 is: 30,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,847.40 : 80,780.34 = 20,570.44 : x
  2. Step 2: Convert to fraction form
    53,847.40/80,780.34 = 20,570.44/x
  3. Step 3: Cross multiply
    53,847.40x = 80,780.34 × 20,570.44
  4. Step 4: Simplify right side
    53,847.40x = 1,661,687,137.15
  5. Step 5: Solve for x
    x = 1,661,687,137.15/53,847.40
  6. Step 6: Final answer
    x = 30,859.19

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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.