Home / 78,174.72-117,097.38-61,455.24

Finding the Fourth Proportional to 78,174.72, 117,097.38 and 61,455.24

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Solution

The fourth proportional to 78,174.72, 117,097.38 and 61,455.24 is: 92,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,174.72 : 117,097.38 = 61,455.24 : x
  2. Step 2: Convert to fraction form
    78,174.72/117,097.38 = 61,455.24/x
  3. Step 3: Cross multiply
    78,174.72x = 117,097.38 × 61,455.24
  4. Step 4: Simplify right side
    78,174.72x = 7,196,247,591.27
  5. Step 5: Solve for x
    x = 7,196,247,591.27/78,174.72
  6. Step 6: Final answer
    x = 92,053.38

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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.