Home / 72,976.16-109,464.24-56,360.43

Finding the Fourth Proportional to 72,976.16, 109,464.24 and 56,360.43

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Solution

The fourth proportional to 72,976.16, 109,464.24 and 56,360.43 is: 84,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,976.16 : 109,464.24 = 56,360.43 : x
  2. Step 2: Convert to fraction form
    72,976.16/109,464.24 = 56,360.43/x
  3. Step 3: Cross multiply
    72,976.16x = 109,464.24 × 56,360.43
  4. Step 4: Simplify right side
    72,976.16x = 6,169,451,636.02
  5. Step 5: Solve for x
    x = 6,169,451,636.02/72,976.16
  6. Step 6: Final answer
    x = 84,540.65

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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.