Home / 76,537.89-114,813.32-20,377.98

Finding the Fourth Proportional to 76,537.89, 114,813.32 and 20,377.98

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Solution

The fourth proportional to 76,537.89, 114,813.32 and 20,377.98 is: 30,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,537.89 : 114,813.32 = 20,377.98 : x
  2. Step 2: Convert to fraction form
    76,537.89/114,813.32 = 20,377.98/x
  3. Step 3: Cross multiply
    76,537.89x = 114,813.32 × 20,377.98
  4. Step 4: Simplify right side
    76,537.89x = 2,339,663,436.80
  5. Step 5: Solve for x
    x = 2,339,663,436.80/76,537.89
  6. Step 6: Final answer
    x = 30,568.70

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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.