Home / 40,197.08-55,460.66-31,672.78

Finding the Fourth Proportional to 40,197.08, 55,460.66 and 31,672.78

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Solution

The fourth proportional to 40,197.08, 55,460.66 and 31,672.78 is: 43,699.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,197.08 : 55,460.66 = 31,672.78 : x
  2. Step 2: Convert to fraction form
    40,197.08/55,460.66 = 31,672.78/x
  3. Step 3: Cross multiply
    40,197.08x = 55,460.66 × 31,672.78
  4. Step 4: Simplify right side
    40,197.08x = 1,756,593,282.83
  5. Step 5: Solve for x
    x = 1,756,593,282.83/40,197.08
  6. Step 6: Final answer
    x = 43,699.52

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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.