Home / 57,653.24-86,487.89-20,204.64

Finding the Fourth Proportional to 57,653.24, 86,487.89 and 20,204.64

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Solution

The fourth proportional to 57,653.24, 86,487.89 and 20,204.64 is: 30,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,653.24 : 86,487.89 = 20,204.64 : x
  2. Step 2: Convert to fraction form
    57,653.24/86,487.89 = 20,204.64/x
  3. Step 3: Cross multiply
    57,653.24x = 86,487.89 × 20,204.64
  4. Step 4: Simplify right side
    57,653.24x = 1,747,456,580.79
  5. Step 5: Solve for x
    x = 1,747,456,580.79/57,653.24
  6. Step 6: Final answer
    x = 30,309.77

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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.