Home / 76,719.60-114,936.84-41,688.72

Finding the Fourth Proportional to 76,719.60, 114,936.84 and 41,688.72

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Solution

The fourth proportional to 76,719.60, 114,936.84 and 41,688.72 is: 62,455.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,719.60 : 114,936.84 = 41,688.72 : x
  2. Step 2: Convert to fraction form
    76,719.60/114,936.84 = 41,688.72/x
  3. Step 3: Cross multiply
    76,719.60x = 114,936.84 × 41,688.72
  4. Step 4: Simplify right side
    76,719.60x = 4,791,569,740.44
  5. Step 5: Solve for x
    x = 4,791,569,740.44/76,719.60
  6. Step 6: Final answer
    x = 62,455.61

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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.