Home / 82,784.73-124,102.23-30,181.92

Finding the Fourth Proportional to 82,784.73, 124,102.23 and 30,181.92

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Solution

The fourth proportional to 82,784.73, 124,102.23 and 30,181.92 is: 45,245.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,784.73 : 124,102.23 = 30,181.92 : x
  2. Step 2: Convert to fraction form
    82,784.73/124,102.23 = 30,181.92/x
  3. Step 3: Cross multiply
    82,784.73x = 124,102.23 × 30,181.92
  4. Step 4: Simplify right side
    82,784.73x = 3,745,642,999.12
  5. Step 5: Solve for x
    x = 3,745,642,999.12/82,784.73
  6. Step 6: Final answer
    x = 45,245.58

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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.