Home / 82,436.80-123,582.24-40,293.30

Finding the Fourth Proportional to 82,436.80, 123,582.24 and 40,293.30

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Solution

The fourth proportional to 82,436.80, 123,582.24 and 40,293.30 is: 60,404.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,436.80 : 123,582.24 = 40,293.30 : x
  2. Step 2: Convert to fraction form
    82,436.80/123,582.24 = 40,293.30/x
  3. Step 3: Cross multiply
    82,436.80x = 123,582.24 × 40,293.30
  4. Step 4: Simplify right side
    82,436.80x = 4,979,536,270.99
  5. Step 5: Solve for x
    x = 4,979,536,270.99/82,436.80
  6. Step 6: Final answer
    x = 60,404.29

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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.