Home / 49,210.79-73,816.52-21,107.12

Finding the Fourth Proportional to 49,210.79, 73,816.52 and 21,107.12

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Solution

The fourth proportional to 49,210.79, 73,816.52 and 21,107.12 is: 31,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,210.79 : 73,816.52 = 21,107.12 : x
  2. Step 2: Convert to fraction form
    49,210.79/73,816.52 = 21,107.12/x
  3. Step 3: Cross multiply
    49,210.79x = 73,816.52 × 21,107.12
  4. Step 4: Simplify right side
    49,210.79x = 1,558,053,671.00
  5. Step 5: Solve for x
    x = 1,558,053,671.00/49,210.79
  6. Step 6: Final answer
    x = 31,660.82

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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.