Home / 77,976.52-116,972.15-21,816.64

Finding the Fourth Proportional to 77,976.52, 116,972.15 and 21,816.64

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Solution

The fourth proportional to 77,976.52, 116,972.15 and 21,816.64 is: 32,727.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,976.52 : 116,972.15 = 21,816.64 : x
  2. Step 2: Convert to fraction form
    77,976.52/116,972.15 = 21,816.64/x
  3. Step 3: Cross multiply
    77,976.52x = 116,972.15 × 21,816.64
  4. Step 4: Simplify right side
    77,976.52x = 2,551,939,446.43
  5. Step 5: Solve for x
    x = 2,551,939,446.43/77,976.52
  6. Step 6: Final answer
    x = 32,727.02

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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.