Home / 78,996.30-109,014.84-43,186.28

Finding the Fourth Proportional to 78,996.30, 109,014.84 and 43,186.28

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Solution

The fourth proportional to 78,996.30, 109,014.84 and 43,186.28 is: 59,597.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,996.30 : 109,014.84 = 43,186.28 : x
  2. Step 2: Convert to fraction form
    78,996.30/109,014.84 = 43,186.28/x
  3. Step 3: Cross multiply
    78,996.30x = 109,014.84 × 43,186.28
  4. Step 4: Simplify right side
    78,996.30x = 4,707,945,404.40
  5. Step 5: Solve for x
    x = 4,707,945,404.40/78,996.30
  6. Step 6: Final answer
    x = 59,597.04

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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.