Home / 80,935.20-111,684.78-45,127.08

Finding the Fourth Proportional to 80,935.20, 111,684.78 and 45,127.08

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Solution

The fourth proportional to 80,935.20, 111,684.78 and 45,127.08 is: 62,272.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,935.20 : 111,684.78 = 45,127.08 : x
  2. Step 2: Convert to fraction form
    80,935.20/111,684.78 = 45,127.08/x
  3. Step 3: Cross multiply
    80,935.20x = 111,684.78 × 45,127.08
  4. Step 4: Simplify right side
    80,935.20x = 5,040,008,001.84
  5. Step 5: Solve for x
    x = 5,040,008,001.84/80,935.20
  6. Step 6: Final answer
    x = 62,272.14

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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.