Home / 78,564.11-117,795.45-33,614.79

Finding the Fourth Proportional to 78,564.11, 117,795.45 and 33,614.79

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Solution

The fourth proportional to 78,564.11, 117,795.45 and 33,614.79 is: 50,400.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,564.11 : 117,795.45 = 33,614.79 : x
  2. Step 2: Convert to fraction form
    78,564.11/117,795.45 = 33,614.79/x
  3. Step 3: Cross multiply
    78,564.11x = 117,795.45 × 33,614.79
  4. Step 4: Simplify right side
    78,564.11x = 3,959,669,630.38
  5. Step 5: Solve for x
    x = 3,959,669,630.38/78,564.11
  6. Step 6: Final answer
    x = 50,400.49

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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.