Home / 84,982.10-117,300.02-56,687.72

Finding the Fourth Proportional to 84,982.10, 117,300.02 and 56,687.72

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Solution

The fourth proportional to 84,982.10, 117,300.02 and 56,687.72 is: 78,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,982.10 : 117,300.02 = 56,687.72 : x
  2. Step 2: Convert to fraction form
    84,982.10/117,300.02 = 56,687.72/x
  3. Step 3: Cross multiply
    84,982.10x = 117,300.02 × 56,687.72
  4. Step 4: Simplify right side
    84,982.10x = 6,649,469,819.82
  5. Step 5: Solve for x
    x = 6,649,469,819.82/84,982.10
  6. Step 6: Final answer
    x = 78,245.54

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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.