Home / 71,863.31-99,171.37-40,034.26

Finding the Fourth Proportional to 71,863.31, 99,171.37 and 40,034.26

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Solution

The fourth proportional to 71,863.31, 99,171.37 and 40,034.26 is: 55,247.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,863.31 : 99,171.37 = 40,034.26 : x
  2. Step 2: Convert to fraction form
    71,863.31/99,171.37 = 40,034.26/x
  3. Step 3: Cross multiply
    71,863.31x = 99,171.37 × 40,034.26
  4. Step 4: Simplify right side
    71,863.31x = 3,970,252,585.14
  5. Step 5: Solve for x
    x = 3,970,252,585.14/71,863.31
  6. Step 6: Final answer
    x = 55,247.28

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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.