Home / 51,238.96-76,852.66-13,801.78

Finding the Fourth Proportional to 51,238.96, 76,852.66 and 13,801.78

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Solution

The fourth proportional to 51,238.96, 76,852.66 and 13,801.78 is: 20,701.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.96 : 76,852.66 = 13,801.78 : x
  2. Step 2: Convert to fraction form
    51,238.96/76,852.66 = 13,801.78/x
  3. Step 3: Cross multiply
    51,238.96x = 76,852.66 × 13,801.78
  4. Step 4: Simplify right side
    51,238.96x = 1,060,703,505.73
  5. Step 5: Solve for x
    x = 1,060,703,505.73/51,238.96
  6. Step 6: Final answer
    x = 20,701.11

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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.