Home / 78,372.03-108,186.50-52,912.88

Finding the Fourth Proportional to 78,372.03, 108,186.50 and 52,912.88

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Solution

The fourth proportional to 78,372.03, 108,186.50 and 52,912.88 is: 73,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,372.03 : 108,186.50 = 52,912.88 : x
  2. Step 2: Convert to fraction form
    78,372.03/108,186.50 = 52,912.88/x
  3. Step 3: Cross multiply
    78,372.03x = 108,186.50 × 52,912.88
  4. Step 4: Simplify right side
    78,372.03x = 5,724,458,486.62
  5. Step 5: Solve for x
    x = 5,724,458,486.62/78,372.03
  6. Step 6: Final answer
    x = 73,042.11

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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.