Home / 81,292.41-121,960.59-33,891.82

Finding the Fourth Proportional to 81,292.41, 121,960.59 and 33,891.82

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Solution

The fourth proportional to 81,292.41, 121,960.59 and 33,891.82 is: 50,846.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,292.41 : 121,960.59 = 33,891.82 : x
  2. Step 2: Convert to fraction form
    81,292.41/121,960.59 = 33,891.82/x
  3. Step 3: Cross multiply
    81,292.41x = 121,960.59 × 33,891.82
  4. Step 4: Simplify right side
    81,292.41x = 4,133,465,931.38
  5. Step 5: Solve for x
    x = 4,133,465,931.38/81,292.41
  6. Step 6: Final answer
    x = 50,846.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.