Home / 57,220.76-78,964.62-31,727.14

Finding the Fourth Proportional to 57,220.76, 78,964.62 and 31,727.14

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Solution

The fourth proportional to 57,220.76, 78,964.62 and 31,727.14 is: 43,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,220.76 : 78,964.62 = 31,727.14 : x
  2. Step 2: Convert to fraction form
    57,220.76/78,964.62 = 31,727.14/x
  3. Step 3: Cross multiply
    57,220.76x = 78,964.62 × 31,727.14
  4. Step 4: Simplify right side
    57,220.76x = 2,505,321,553.79
  5. Step 5: Solve for x
    x = 2,505,321,553.79/57,220.76
  6. Step 6: Final answer
    x = 43,783.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.