Home / 40,194.08-55,456.51-31,669.78

Finding the Fourth Proportional to 40,194.08, 55,456.51 and 31,669.78

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Solution

The fourth proportional to 40,194.08, 55,456.51 and 31,669.78 is: 43,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,194.08 : 55,456.51 = 31,669.78 : x
  2. Step 2: Convert to fraction form
    40,194.08/55,456.51 = 31,669.78/x
  3. Step 3: Cross multiply
    40,194.08x = 55,456.51 × 31,669.78
  4. Step 4: Simplify right side
    40,194.08x = 1,756,295,471.27
  5. Step 5: Solve for x
    x = 1,756,295,471.27/40,194.08
  6. Step 6: Final answer
    x = 43,695.38

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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.