Home / 72,989.16-109,474.30-23,074.28

Finding the Fourth Proportional to 72,989.16, 109,474.30 and 23,074.28

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Solution

The fourth proportional to 72,989.16, 109,474.30 and 23,074.28 is: 34,608.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,989.16 : 109,474.30 = 23,074.28 : x
  2. Step 2: Convert to fraction form
    72,989.16/109,474.30 = 23,074.28/x
  3. Step 3: Cross multiply
    72,989.16x = 109,474.30 × 23,074.28
  4. Step 4: Simplify right side
    72,989.16x = 2,526,040,651.00
  5. Step 5: Solve for x
    x = 2,526,040,651.00/72,989.16
  6. Step 6: Final answer
    x = 34,608.44

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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.