Home / 53,960.64-80,977.32-18,900.60

Finding the Fourth Proportional to 53,960.64, 80,977.32 and 18,900.60

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Solution

The fourth proportional to 53,960.64, 80,977.32 and 18,900.60 is: 28,363.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,960.64 : 80,977.32 = 18,900.60 : x
  2. Step 2: Convert to fraction form
    53,960.64/80,977.32 = 18,900.60/x
  3. Step 3: Cross multiply
    53,960.64x = 80,977.32 × 18,900.60
  4. Step 4: Simplify right side
    53,960.64x = 1,530,519,934.39
  5. Step 5: Solve for x
    x = 1,530,519,934.39/53,960.64
  6. Step 6: Final answer
    x = 28,363.64

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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.