Home / 76,890.29-115,329.76-36,937.85

Finding the Fourth Proportional to 76,890.29, 115,329.76 and 36,937.85

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Solution

The fourth proportional to 76,890.29, 115,329.76 and 36,937.85 is: 55,404.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,890.29 : 115,329.76 = 36,937.85 : x
  2. Step 2: Convert to fraction form
    76,890.29/115,329.76 = 36,937.85/x
  3. Step 3: Cross multiply
    76,890.29x = 115,329.76 × 36,937.85
  4. Step 4: Simplify right side
    76,890.29x = 4,260,032,706.42
  5. Step 5: Solve for x
    x = 4,260,032,706.42/76,890.29
  6. Step 6: Final answer
    x = 55,404.04

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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.