Home / 84,402.07-126,540.06-51,114.04

Finding the Fourth Proportional to 84,402.07, 126,540.06 and 51,114.04

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Solution

The fourth proportional to 84,402.07, 126,540.06 and 51,114.04 is: 76,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,402.07 : 126,540.06 = 51,114.04 : x
  2. Step 2: Convert to fraction form
    84,402.07/126,540.06 = 51,114.04/x
  3. Step 3: Cross multiply
    84,402.07x = 126,540.06 × 51,114.04
  4. Step 4: Simplify right side
    84,402.07x = 6,467,973,688.44
  5. Step 5: Solve for x
    x = 6,467,973,688.44/84,402.07
  6. Step 6: Final answer
    x = 76,632.88

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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.