Home / 82,982.06-124,473.12-20,652.56

Finding the Fourth Proportional to 82,982.06, 124,473.12 and 20,652.56

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Solution

The fourth proportional to 82,982.06, 124,473.12 and 20,652.56 is: 30,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,982.06 : 124,473.12 = 20,652.56 : x
  2. Step 2: Convert to fraction form
    82,982.06/124,473.12 = 20,652.56/x
  3. Step 3: Cross multiply
    82,982.06x = 124,473.12 × 20,652.56
  4. Step 4: Simplify right side
    82,982.06x = 2,570,688,579.19
  5. Step 5: Solve for x
    x = 2,570,688,579.19/82,982.06
  6. Step 6: Final answer
    x = 30,978.85

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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.