Home / 40,043.26-55,196.08-31,531.88

Finding the Fourth Proportional to 40,043.26, 55,196.08 and 31,531.88

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Solution

The fourth proportional to 40,043.26, 55,196.08 and 31,531.88 is: 43,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,043.26 : 55,196.08 = 31,531.88 : x
  2. Step 2: Convert to fraction form
    40,043.26/55,196.08 = 31,531.88/x
  3. Step 3: Cross multiply
    40,043.26x = 55,196.08 × 31,531.88
  4. Step 4: Simplify right side
    40,043.26x = 1,740,436,407.56
  5. Step 5: Solve for x
    x = 1,740,436,407.56/40,043.26
  6. Step 6: Final answer
    x = 43,463.90

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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.