Home / 76,061.28-114,091.92-74,311.68

Finding the Fourth Proportional to 76,061.28, 114,091.92 and 74,311.68

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Solution

The fourth proportional to 76,061.28, 114,091.92 and 74,311.68 is: 111,467.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,061.28 : 114,091.92 = 74,311.68 : x
  2. Step 2: Convert to fraction form
    76,061.28/114,091.92 = 74,311.68/x
  3. Step 3: Cross multiply
    76,061.28x = 114,091.92 × 74,311.68
  4. Step 4: Simplify right side
    76,061.28x = 8,478,362,249.63
  5. Step 5: Solve for x
    x = 8,478,362,249.63/76,061.28
  6. Step 6: Final answer
    x = 111,467.52

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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.