Home / 79,087.79-109,141.14-43,277.81

Finding the Fourth Proportional to 79,087.79, 109,141.14 and 43,277.81

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Solution

The fourth proportional to 79,087.79, 109,141.14 and 43,277.81 is: 59,723.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,087.79 : 109,141.14 = 43,277.81 : x
  2. Step 2: Convert to fraction form
    79,087.79/109,141.14 = 43,277.81/x
  3. Step 3: Cross multiply
    79,087.79x = 109,141.14 × 43,277.81
  4. Step 4: Simplify right side
    79,087.79x = 4,723,388,974.40
  5. Step 5: Solve for x
    x = 4,723,388,974.40/79,087.79
  6. Step 6: Final answer
    x = 59,723.37

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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.