Home / 82,282.12-123,432.60-40,132.12

Finding the Fourth Proportional to 82,282.12, 123,432.60 and 40,132.12

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Solution

The fourth proportional to 82,282.12, 123,432.60 and 40,132.12 is: 60,202.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,282.12 : 123,432.60 = 40,132.12 : x
  2. Step 2: Convert to fraction form
    82,282.12/123,432.60 = 40,132.12/x
  3. Step 3: Cross multiply
    82,282.12x = 123,432.60 × 40,132.12
  4. Step 4: Simplify right side
    82,282.12x = 4,953,611,915.11
  5. Step 5: Solve for x
    x = 4,953,611,915.11/82,282.12
  6. Step 6: Final answer
    x = 60,202.77

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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.