Home / 172,035.36-258,047.64-47,375.28

Finding the Fourth Proportional to 172,035.36, 258,047.64 and 47,375.28

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Solution

The fourth proportional to 172,035.36, 258,047.64 and 47,375.28 is: 71,061.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,035.36 : 258,047.64 = 47,375.28 : x
  2. Step 2: Convert to fraction form
    172,035.36/258,047.64 = 47,375.28/x
  3. Step 3: Cross multiply
    172,035.36x = 258,047.64 × 47,375.28
  4. Step 4: Simplify right side
    172,035.36x = 12,225,079,198.34
  5. Step 5: Solve for x
    x = 12,225,079,198.34/172,035.36
  6. Step 6: Final answer
    x = 71,061.43

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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.