Home / 76,519.10-114,666.60-68,621.60

Finding the Fourth Proportional to 76,519.10, 114,666.60 and 68,621.60

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Solution

The fourth proportional to 76,519.10, 114,666.60 and 68,621.60 is: 102,831.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,519.10 : 114,666.60 = 68,621.60 : x
  2. Step 2: Convert to fraction form
    76,519.10/114,666.60 = 68,621.60/x
  3. Step 3: Cross multiply
    76,519.10x = 114,666.60 × 68,621.60
  4. Step 4: Simplify right side
    76,519.10x = 7,868,605,558.56
  5. Step 5: Solve for x
    x = 7,868,605,558.56/76,519.10
  6. Step 6: Final answer
    x = 102,831.91

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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.