Home / 49,965.57-68,992.20-30,873.06

Finding the Fourth Proportional to 49,965.57, 68,992.20 and 30,873.06

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Solution

The fourth proportional to 49,965.57, 68,992.20 and 30,873.06 is: 42,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,965.57 : 68,992.20 = 30,873.06 : x
  2. Step 2: Convert to fraction form
    49,965.57/68,992.20 = 30,873.06/x
  3. Step 3: Cross multiply
    49,965.57x = 68,992.20 × 30,873.06
  4. Step 4: Simplify right side
    49,965.57x = 2,130,000,330.13
  5. Step 5: Solve for x
    x = 2,130,000,330.13/49,965.57
  6. Step 6: Final answer
    x = 42,629.36

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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.