Home / 72,906.16-109,319.67-32,878.31

Finding the Fourth Proportional to 72,906.16, 109,319.67 and 32,878.31

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Solution

The fourth proportional to 72,906.16, 109,319.67 and 32,878.31 is: 49,299.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,906.16 : 109,319.67 = 32,878.31 : x
  2. Step 2: Convert to fraction form
    72,906.16/109,319.67 = 32,878.31/x
  3. Step 3: Cross multiply
    72,906.16x = 109,319.67 × 32,878.31
  4. Step 4: Simplify right side
    72,906.16x = 3,594,246,272.66
  5. Step 5: Solve for x
    x = 3,594,246,272.66/72,906.16
  6. Step 6: Final answer
    x = 49,299.62

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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.