Home / 53,818.80-80,724.92-20,078.32

Finding the Fourth Proportional to 53,818.80, 80,724.92 and 20,078.32

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Solution

The fourth proportional to 53,818.80, 80,724.92 and 20,078.32 is: 30,116.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,818.80 : 80,724.92 = 20,078.32 : x
  2. Step 2: Convert to fraction form
    53,818.80/80,724.92 = 20,078.32/x
  3. Step 3: Cross multiply
    53,818.80x = 80,724.92 × 20,078.32
  4. Step 4: Simplify right side
    53,818.80x = 1,620,820,775.73
  5. Step 5: Solve for x
    x = 1,620,820,775.73/53,818.80
  6. Step 6: Final answer
    x = 30,116.26

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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.