Home / 73,263.09-109,908.92-31,142.69

Finding the Fourth Proportional to 73,263.09, 109,908.92 and 31,142.69

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Solution

The fourth proportional to 73,263.09, 109,908.92 and 31,142.69 is: 46,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,263.09 : 109,908.92 = 31,142.69 : x
  2. Step 2: Convert to fraction form
    73,263.09/109,908.92 = 31,142.69/x
  3. Step 3: Cross multiply
    73,263.09x = 109,908.92 × 31,142.69
  4. Step 4: Simplify right side
    73,263.09x = 3,422,859,364.27
  5. Step 5: Solve for x
    x = 3,422,859,364.27/73,263.09
  6. Step 6: Final answer
    x = 46,720.10

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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.