Home / 207,724.43-311,639.09-57,964.59

Finding the Fourth Proportional to 207,724.43, 311,639.09 and 57,964.59

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Solution

The fourth proportional to 207,724.43, 311,639.09 and 57,964.59 is: 86,961.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,724.43 : 311,639.09 = 57,964.59 : x
  2. Step 2: Convert to fraction form
    207,724.43/311,639.09 = 57,964.59/x
  3. Step 3: Cross multiply
    207,724.43x = 311,639.09 × 57,964.59
  4. Step 4: Simplify right side
    207,724.43x = 18,064,031,790.00
  5. Step 5: Solve for x
    x = 18,064,031,790.00/207,724.43
  6. Step 6: Final answer
    x = 86,961.52

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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.