Home / 77,140.44-115,725.24-52,237.80

Finding the Fourth Proportional to 77,140.44, 115,725.24 and 52,237.80

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Solution

The fourth proportional to 77,140.44, 115,725.24 and 52,237.80 is: 78,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,140.44 : 115,725.24 = 52,237.80 : x
  2. Step 2: Convert to fraction form
    77,140.44/115,725.24 = 52,237.80/x
  3. Step 3: Cross multiply
    77,140.44x = 115,725.24 × 52,237.80
  4. Step 4: Simplify right side
    77,140.44x = 6,045,231,942.07
  5. Step 5: Solve for x
    x = 6,045,231,942.07/77,140.44
  6. Step 6: Final answer
    x = 78,366.57

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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.