Home / 76,738.04-115,116.78-21,334.04

Finding the Fourth Proportional to 76,738.04, 115,116.78 and 21,334.04

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Solution

The fourth proportional to 76,738.04, 115,116.78 and 21,334.04 is: 32,003.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,738.04 : 115,116.78 = 21,334.04 : x
  2. Step 2: Convert to fraction form
    76,738.04/115,116.78 = 21,334.04/x
  3. Step 3: Cross multiply
    76,738.04x = 115,116.78 × 21,334.04
  4. Step 4: Simplify right side
    76,738.04x = 2,455,905,989.19
  5. Step 5: Solve for x
    x = 2,455,905,989.19/76,738.04
  6. Step 6: Final answer
    x = 32,003.76

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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.