Home / 76,697.20-115,089.72-41,639.80

Finding the Fourth Proportional to 76,697.20, 115,089.72 and 41,639.80

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Solution

The fourth proportional to 76,697.20, 115,089.72 and 41,639.80 is: 62,483.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,697.20 : 115,089.72 = 41,639.80 : x
  2. Step 2: Convert to fraction form
    76,697.20/115,089.72 = 41,639.80/x
  3. Step 3: Cross multiply
    76,697.20x = 115,089.72 × 41,639.80
  4. Step 4: Simplify right side
    76,697.20x = 4,792,312,922.86
  5. Step 5: Solve for x
    x = 4,792,312,922.86/76,697.20
  6. Step 6: Final answer
    x = 62,483.54

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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.