Home / 51,300.80-76,961.12-19,708.48

Finding the Fourth Proportional to 51,300.80, 76,961.12 and 19,708.48

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Solution

The fourth proportional to 51,300.80, 76,961.12 and 19,708.48 is: 29,566.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,300.80 : 76,961.12 = 19,708.48 : x
  2. Step 2: Convert to fraction form
    51,300.80/76,961.12 = 19,708.48/x
  3. Step 3: Cross multiply
    51,300.80x = 76,961.12 × 19,708.48
  4. Step 4: Simplify right side
    51,300.80x = 1,516,786,694.30
  5. Step 5: Solve for x
    x = 1,516,786,694.30/51,300.80
  6. Step 6: Final answer
    x = 29,566.53

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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.