Home / 73,519.40-110,279.76-20,928.86

Finding the Fourth Proportional to 73,519.40, 110,279.76 and 20,928.86

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Solution

The fourth proportional to 73,519.40, 110,279.76 and 20,928.86 is: 31,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,519.40 : 110,279.76 = 20,928.86 : x
  2. Step 2: Convert to fraction form
    73,519.40/110,279.76 = 20,928.86/x
  3. Step 3: Cross multiply
    73,519.40x = 110,279.76 × 20,928.86
  4. Step 4: Simplify right side
    73,519.40x = 2,308,029,657.87
  5. Step 5: Solve for x
    x = 2,308,029,657.87/73,519.40
  6. Step 6: Final answer
    x = 31,393.48

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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.