Home / 71,185.23-106,770.56-18,587.88

Finding the Fourth Proportional to 71,185.23, 106,770.56 and 18,587.88

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Solution

The fourth proportional to 71,185.23, 106,770.56 and 18,587.88 is: 27,879.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,185.23 : 106,770.56 = 18,587.88 : x
  2. Step 2: Convert to fraction form
    71,185.23/106,770.56 = 18,587.88/x
  3. Step 3: Cross multiply
    71,185.23x = 106,770.56 × 18,587.88
  4. Step 4: Simplify right side
    71,185.23x = 1,984,638,263.87
  5. Step 5: Solve for x
    x = 1,984,638,263.87/71,185.23
  6. Step 6: Final answer
    x = 27,879.92

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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.