Home / 84,127.24-126,173.04-31,540.60

Finding the Fourth Proportional to 84,127.24, 126,173.04 and 31,540.60

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Solution

The fourth proportional to 84,127.24, 126,173.04 and 31,540.60 is: 47,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,127.24 : 126,173.04 = 31,540.60 : x
  2. Step 2: Convert to fraction form
    84,127.24/126,173.04 = 31,540.60/x
  3. Step 3: Cross multiply
    84,127.24x = 126,173.04 × 31,540.60
  4. Step 4: Simplify right side
    84,127.24x = 3,979,573,385.42
  5. Step 5: Solve for x
    x = 3,979,573,385.42/84,127.24
  6. Step 6: Final answer
    x = 47,304.22

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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.