Home / 40,195.30-55,405.57-31,683.61

Finding the Fourth Proportional to 40,195.30, 55,405.57 and 31,683.61

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Solution

The fourth proportional to 40,195.30, 55,405.57 and 31,683.61 is: 43,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,195.30 : 55,405.57 = 31,683.61 : x
  2. Step 2: Convert to fraction form
    40,195.30/55,405.57 = 31,683.61/x
  3. Step 3: Cross multiply
    40,195.30x = 55,405.57 × 31,683.61
  4. Step 4: Simplify right side
    40,195.30x = 1,755,448,471.71
  5. Step 5: Solve for x
    x = 1,755,448,471.71/40,195.30
  6. Step 6: Final answer
    x = 43,672.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.