Home / 115,205.50-172,672.48-51,951.56

Finding the Fourth Proportional to 115,205.50, 172,672.48 and 51,951.56

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Solution

The fourth proportional to 115,205.50, 172,672.48 and 51,951.56 is: 77,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,205.50 : 172,672.48 = 51,951.56 : x
  2. Step 2: Convert to fraction form
    115,205.50/172,672.48 = 51,951.56/x
  3. Step 3: Cross multiply
    115,205.50x = 172,672.48 × 51,951.56
  4. Step 4: Simplify right side
    115,205.50x = 8,970,604,705.07
  5. Step 5: Solve for x
    x = 8,970,604,705.07/115,205.50
  6. Step 6: Final answer
    x = 77,866.11

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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.