Home / 77,165.87-115,942.59-49,098.15

Finding the Fourth Proportional to 77,165.87, 115,942.59 and 49,098.15

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Solution

The fourth proportional to 77,165.87, 115,942.59 and 49,098.15 is: 73,770.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,165.87 : 115,942.59 = 49,098.15 : x
  2. Step 2: Convert to fraction form
    77,165.87/115,942.59 = 49,098.15/x
  3. Step 3: Cross multiply
    77,165.87x = 115,942.59 × 49,098.15
  4. Step 4: Simplify right side
    77,165.87x = 5,692,566,675.21
  5. Step 5: Solve for x
    x = 5,692,566,675.21/77,165.87
  6. Step 6: Final answer
    x = 73,770.53

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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.