Home / 71,309.10-98,375.66-42,999.06

Finding the Fourth Proportional to 71,309.10, 98,375.66 and 42,999.06

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Solution

The fourth proportional to 71,309.10, 98,375.66 and 42,999.06 is: 59,320.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,309.10 : 98,375.66 = 42,999.06 : x
  2. Step 2: Convert to fraction form
    71,309.10/98,375.66 = 42,999.06/x
  3. Step 3: Cross multiply
    71,309.10x = 98,375.66 × 42,999.06
  4. Step 4: Simplify right side
    71,309.10x = 4,230,060,691.88
  5. Step 5: Solve for x
    x = 4,230,060,691.88/71,309.10
  6. Step 6: Final answer
    x = 59,320.07

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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.