Home / 57,487.96-86,234.37-20,051.80

Finding the Fourth Proportional to 57,487.96, 86,234.37 and 20,051.80

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Solution

The fourth proportional to 57,487.96, 86,234.37 and 20,051.80 is: 30,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,487.96 : 86,234.37 = 20,051.80 : x
  2. Step 2: Convert to fraction form
    57,487.96/86,234.37 = 20,051.80/x
  3. Step 3: Cross multiply
    57,487.96x = 86,234.37 × 20,051.80
  4. Step 4: Simplify right side
    57,487.96x = 1,729,154,340.37
  5. Step 5: Solve for x
    x = 1,729,154,340.37/57,487.96
  6. Step 6: Final answer
    x = 30,078.55

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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.