Home / 72,934.72-109,285.44-65,936.32

Finding the Fourth Proportional to 72,934.72, 109,285.44 and 65,936.32

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Solution

The fourth proportional to 72,934.72, 109,285.44 and 65,936.32 is: 98,799.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,934.72 : 109,285.44 = 65,936.32 : x
  2. Step 2: Convert to fraction form
    72,934.72/109,285.44 = 65,936.32/x
  3. Step 3: Cross multiply
    72,934.72x = 109,285.44 × 65,936.32
  4. Step 4: Simplify right side
    72,934.72x = 7,205,879,743.18
  5. Step 5: Solve for x
    x = 7,205,879,743.18/72,934.72
  6. Step 6: Final answer
    x = 98,799.03

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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.