Home / 68,220.16-102,327.92-20,833.34

Finding the Fourth Proportional to 68,220.16, 102,327.92 and 20,833.34

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Solution

The fourth proportional to 68,220.16, 102,327.92 and 20,833.34 is: 31,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,220.16 : 102,327.92 = 20,833.34 : x
  2. Step 2: Convert to fraction form
    68,220.16/102,327.92 = 20,833.34/x
  3. Step 3: Cross multiply
    68,220.16x = 102,327.92 × 20,833.34
  4. Step 4: Simplify right side
    68,220.16x = 2,131,831,837.21
  5. Step 5: Solve for x
    x = 2,131,831,837.21/68,220.16
  6. Step 6: Final answer
    x = 31,249.30

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1.5x scale

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.