Home / 78,273.08-117,142.68-49,795.64

Finding the Fourth Proportional to 78,273.08, 117,142.68 and 49,795.64

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Solution

The fourth proportional to 78,273.08, 117,142.68 and 49,795.64 is: 74,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,273.08 : 117,142.68 = 49,795.64 : x
  2. Step 2: Convert to fraction form
    78,273.08/117,142.68 = 49,795.64/x
  3. Step 3: Cross multiply
    78,273.08x = 117,142.68 × 49,795.64
  4. Step 4: Simplify right side
    78,273.08x = 5,833,194,721.92
  5. Step 5: Solve for x
    x = 5,833,194,721.92/78,273.08
  6. Step 6: Final answer
    x = 74,523.64

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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.