Home / 40,179.03-55,435.82-31,654.70

Finding the Fourth Proportional to 40,179.03, 55,435.82 and 31,654.70

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Solution

The fourth proportional to 40,179.03, 55,435.82 and 31,654.70 is: 43,674.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,179.03 : 55,435.82 = 31,654.70 : x
  2. Step 2: Convert to fraction form
    40,179.03/55,435.82 = 31,654.70/x
  3. Step 3: Cross multiply
    40,179.03x = 55,435.82 × 31,654.70
  4. Step 4: Simplify right side
    40,179.03x = 1,754,803,815.90
  5. Step 5: Solve for x
    x = 1,754,803,815.90/40,179.03
  6. Step 6: Final answer
    x = 43,674.62

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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.