Home / 40,159.97-55,394.78-31,648.89

Finding the Fourth Proportional to 40,159.97, 55,394.78 and 31,648.89

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Solution

The fourth proportional to 40,159.97, 55,394.78 and 31,648.89 is: 43,655.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,159.97 : 55,394.78 = 31,648.89 : x
  2. Step 2: Convert to fraction form
    40,159.97/55,394.78 = 31,648.89/x
  3. Step 3: Cross multiply
    40,159.97x = 55,394.78 × 31,648.89
  4. Step 4: Simplify right side
    40,159.97x = 1,753,183,140.55
  5. Step 5: Solve for x
    x = 1,753,183,140.55/40,159.97
  6. Step 6: Final answer
    x = 43,655.00

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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.