Home / 72,225.09-108,351.99-51,172.47

Finding the Fourth Proportional to 72,225.09, 108,351.99 and 51,172.47

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Solution

The fourth proportional to 72,225.09, 108,351.99 and 51,172.47 is: 76,768.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,225.09 : 108,351.99 = 51,172.47 : x
  2. Step 2: Convert to fraction form
    72,225.09/108,351.99 = 51,172.47/x
  3. Step 3: Cross multiply
    72,225.09x = 108,351.99 × 51,172.47
  4. Step 4: Simplify right side
    72,225.09x = 5,544,638,957.72
  5. Step 5: Solve for x
    x = 5,544,638,957.72/72,225.09
  6. Step 6: Final answer
    x = 76,768.88

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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.