Home / 47,990.62-66,233.46-29,128.06

Finding the Fourth Proportional to 47,990.62, 66,233.46 and 29,128.06

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Solution

The fourth proportional to 47,990.62, 66,233.46 and 29,128.06 is: 40,200.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,990.62 : 66,233.46 = 29,128.06 : x
  2. Step 2: Convert to fraction form
    47,990.62/66,233.46 = 29,128.06/x
  3. Step 3: Cross multiply
    47,990.62x = 66,233.46 × 29,128.06
  4. Step 4: Simplify right side
    47,990.62x = 1,929,252,196.89
  5. Step 5: Solve for x
    x = 1,929,252,196.89/47,990.62
  6. Step 6: Final answer
    x = 40,200.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.