Home / 82,114.09-123,132.85-42,660.61

Finding the Fourth Proportional to 82,114.09, 123,132.85 and 42,660.61

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Solution

The fourth proportional to 82,114.09, 123,132.85 and 42,660.61 is: 63,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,114.09 : 123,132.85 = 42,660.61 : x
  2. Step 2: Convert to fraction form
    82,114.09/123,132.85 = 42,660.61/x
  3. Step 3: Cross multiply
    82,114.09x = 123,132.85 × 42,660.61
  4. Step 4: Simplify right side
    82,114.09x = 5,252,922,077.55
  5. Step 5: Solve for x
    x = 5,252,922,077.55/82,114.09
  6. Step 6: Final answer
    x = 63,971.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.