Home / 67,839.81-101,734.16-28,399.65

Finding the Fourth Proportional to 67,839.81, 101,734.16 and 28,399.65

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Solution

The fourth proportional to 67,839.81, 101,734.16 and 28,399.65 is: 42,588.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,839.81 : 101,734.16 = 28,399.65 : x
  2. Step 2: Convert to fraction form
    67,839.81/101,734.16 = 28,399.65/x
  3. Step 3: Cross multiply
    67,839.81x = 101,734.16 × 28,399.65
  4. Step 4: Simplify right side
    67,839.81x = 2,889,214,395.05
  5. Step 5: Solve for x
    x = 2,889,214,395.05/67,839.81
  6. Step 6: Final answer
    x = 42,588.77

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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.