Home / 57,766.96-86,655.30-20,323.09

Finding the Fourth Proportional to 57,766.96, 86,655.30 and 20,323.09

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Solution

The fourth proportional to 57,766.96, 86,655.30 and 20,323.09 is: 30,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,766.96 : 86,655.30 = 20,323.09 : x
  2. Step 2: Convert to fraction form
    57,766.96/86,655.30 = 20,323.09/x
  3. Step 3: Cross multiply
    57,766.96x = 86,655.30 × 20,323.09
  4. Step 4: Simplify right side
    57,766.96x = 1,761,103,460.88
  5. Step 5: Solve for x
    x = 1,761,103,460.88/57,766.96
  6. Step 6: Final answer
    x = 30,486.34

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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.