Home / 71,309.24-98,375.84-42,999.20

Finding the Fourth Proportional to 71,309.24, 98,375.84 and 42,999.20

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Solution

The fourth proportional to 71,309.24, 98,375.84 and 42,999.20 is: 59,320.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,309.24 : 98,375.84 = 42,999.20 : x
  2. Step 2: Convert to fraction form
    71,309.24/98,375.84 = 42,999.20/x
  3. Step 3: Cross multiply
    71,309.24x = 98,375.84 × 42,999.20
  4. Step 4: Simplify right side
    71,309.24x = 4,230,082,419.33
  5. Step 5: Solve for x
    x = 4,230,082,419.33/71,309.24
  6. Step 6: Final answer
    x = 59,320.26

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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.