Home / 78,596.10-117,942.75-31,849.38

Finding the Fourth Proportional to 78,596.10, 117,942.75 and 31,849.38

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Solution

The fourth proportional to 78,596.10, 117,942.75 and 31,849.38 is: 47,793.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,596.10 : 117,942.75 = 31,849.38 : x
  2. Step 2: Convert to fraction form
    78,596.10/117,942.75 = 31,849.38/x
  3. Step 3: Cross multiply
    78,596.10x = 117,942.75 × 31,849.38
  4. Step 4: Simplify right side
    78,596.10x = 3,756,403,463.00
  5. Step 5: Solve for x
    x = 3,756,403,463.00/78,596.10
  6. Step 6: Final answer
    x = 47,793.76

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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.