Home / 71,922.16-99,252.12-40,090.64

Finding the Fourth Proportional to 71,922.16, 99,252.12 and 40,090.64

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Solution

The fourth proportional to 71,922.16, 99,252.12 and 40,090.64 is: 55,324.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,922.16 : 99,252.12 = 40,090.64 : x
  2. Step 2: Convert to fraction form
    71,922.16/99,252.12 = 40,090.64/x
  3. Step 3: Cross multiply
    71,922.16x = 99,252.12 × 40,090.64
  4. Step 4: Simplify right side
    71,922.16x = 3,979,081,012.16
  5. Step 5: Solve for x
    x = 3,979,081,012.16/71,922.16
  6. Step 6: Final answer
    x = 55,324.83

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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.