Home / 73,319.23-109,985.26-20,728.73

Finding the Fourth Proportional to 73,319.23, 109,985.26 and 20,728.73

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Solution

The fourth proportional to 73,319.23, 109,985.26 and 20,728.73 is: 31,094.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,319.23 : 109,985.26 = 20,728.73 : x
  2. Step 2: Convert to fraction form
    73,319.23/109,985.26 = 20,728.73/x
  3. Step 3: Cross multiply
    73,319.23x = 109,985.26 × 20,728.73
  4. Step 4: Simplify right side
    73,319.23x = 2,279,854,758.52
  5. Step 5: Solve for x
    x = 2,279,854,758.52/73,319.23
  6. Step 6: Final answer
    x = 31,094.91

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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.