Home / 72,135.56-108,242.22-30,044.72

Finding the Fourth Proportional to 72,135.56, 108,242.22 and 30,044.72

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Solution

The fourth proportional to 72,135.56, 108,242.22 and 30,044.72 is: 45,083.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,135.56 : 108,242.22 = 30,044.72 : x
  2. Step 2: Convert to fraction form
    72,135.56/108,242.22 = 30,044.72/x
  3. Step 3: Cross multiply
    72,135.56x = 108,242.22 × 30,044.72
  4. Step 4: Simplify right side
    72,135.56x = 3,252,107,192.08
  5. Step 5: Solve for x
    x = 3,252,107,192.08/72,135.56
  6. Step 6: Final answer
    x = 45,083.27

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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.