Home / 82,727.20-123,944.40-79,986.40

Finding the Fourth Proportional to 82,727.20, 123,944.40 and 79,986.40

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Solution

The fourth proportional to 82,727.20, 123,944.40 and 79,986.40 is: 119,838.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,727.20 : 123,944.40 = 79,986.40 : x
  2. Step 2: Convert to fraction form
    82,727.20/123,944.40 = 79,986.40/x
  3. Step 3: Cross multiply
    82,727.20x = 123,944.40 × 79,986.40
  4. Step 4: Simplify right side
    82,727.20x = 9,913,866,356.16
  5. Step 5: Solve for x
    x = 9,913,866,356.16/82,727.20
  6. Step 6: Final answer
    x = 119,838.05

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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.