Home / 73,212.20-109,939.76-45,685.16

Finding the Fourth Proportional to 73,212.20, 109,939.76 and 45,685.16

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Solution

The fourth proportional to 73,212.20, 109,939.76 and 45,685.16 is: 68,603.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,212.20 : 109,939.76 = 45,685.16 : x
  2. Step 2: Convert to fraction form
    73,212.20/109,939.76 = 45,685.16/x
  3. Step 3: Cross multiply
    73,212.20x = 109,939.76 × 45,685.16
  4. Step 4: Simplify right side
    73,212.20x = 5,022,615,525.96
  5. Step 5: Solve for x
    x = 5,022,615,525.96/73,212.20
  6. Step 6: Final answer
    x = 68,603.53

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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.