Home / 45,942.09-68,871.52-31,908.74

Finding the Fourth Proportional to 45,942.09, 68,871.52 and 31,908.74

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Solution

The fourth proportional to 45,942.09, 68,871.52 and 31,908.74 is: 47,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,942.09 : 68,871.52 = 31,908.74 : x
  2. Step 2: Convert to fraction form
    45,942.09/68,871.52 = 31,908.74/x
  3. Step 3: Cross multiply
    45,942.09x = 68,871.52 × 31,908.74
  4. Step 4: Simplify right side
    45,942.09x = 2,197,603,224.57
  5. Step 5: Solve for x
    x = 2,197,603,224.57/45,942.09
  6. Step 6: Final answer
    x = 47,834.20

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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.