Home / 78,412.28-117,618.24-34,033.28

Finding the Fourth Proportional to 78,412.28, 117,618.24 and 34,033.28

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Solution

The fourth proportional to 78,412.28, 117,618.24 and 34,033.28 is: 51,049.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,412.28 : 117,618.24 = 34,033.28 : x
  2. Step 2: Convert to fraction form
    78,412.28/117,618.24 = 34,033.28/x
  3. Step 3: Cross multiply
    78,412.28x = 117,618.24 × 34,033.28
  4. Step 4: Simplify right side
    78,412.28x = 4,002,934,495.03
  5. Step 5: Solve for x
    x = 4,002,934,495.03/78,412.28
  6. Step 6: Final answer
    x = 51,049.84

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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.