Home / 57,914.96-86,856.78-20,470.10

Finding the Fourth Proportional to 57,914.96, 86,856.78 and 20,470.10

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Solution

The fourth proportional to 57,914.96, 86,856.78 and 20,470.10 is: 30,699.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,914.96 : 86,856.78 = 20,470.10 : x
  2. Step 2: Convert to fraction form
    57,914.96/86,856.78 = 20,470.10/x
  3. Step 3: Cross multiply
    57,914.96x = 86,856.78 × 20,470.10
  4. Step 4: Simplify right side
    57,914.96x = 1,777,966,972.28
  5. Step 5: Solve for x
    x = 1,777,966,972.28/57,914.96
  6. Step 6: Final answer
    x = 30,699.61

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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.