Home / 82,433.60-123,723.30-70,623.80

Finding the Fourth Proportional to 82,433.60, 123,723.30 and 70,623.80

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Solution

The fourth proportional to 82,433.60, 123,723.30 and 70,623.80 is: 105,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,433.60 : 123,723.30 = 70,623.80 : x
  2. Step 2: Convert to fraction form
    82,433.60/123,723.30 = 70,623.80/x
  3. Step 3: Cross multiply
    82,433.60x = 123,723.30 × 70,623.80
  4. Step 4: Simplify right side
    82,433.60x = 8,737,809,594.54
  5. Step 5: Solve for x
    x = 8,737,809,594.54/82,433.60
  6. Step 6: Final answer
    x = 105,998.16

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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.