Home / 82,936.75-124,405.21-20,607.25

Finding the Fourth Proportional to 82,936.75, 124,405.21 and 20,607.25

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Solution

The fourth proportional to 82,936.75, 124,405.21 and 20,607.25 is: 30,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,936.75 : 124,405.21 = 20,607.25 : x
  2. Step 2: Convert to fraction form
    82,936.75/124,405.21 = 20,607.25/x
  3. Step 3: Cross multiply
    82,936.75x = 124,405.21 × 20,607.25
  4. Step 4: Simplify right side
    82,936.75x = 2,563,649,483.68
  5. Step 5: Solve for x
    x = 2,563,649,483.68/82,936.75
  6. Step 6: Final answer
    x = 30,910.90

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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.