Home / 71,119.17-106,684.86-18,528.57

Finding the Fourth Proportional to 71,119.17, 106,684.86 and 18,528.57

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Solution

The fourth proportional to 71,119.17, 106,684.86 and 18,528.57 is: 27,794.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,119.17 : 106,684.86 = 18,528.57 : x
  2. Step 2: Convert to fraction form
    71,119.17/106,684.86 = 18,528.57/x
  3. Step 3: Cross multiply
    71,119.17x = 106,684.86 × 18,528.57
  4. Step 4: Simplify right side
    71,119.17x = 1,976,717,896.45
  5. Step 5: Solve for x
    x = 1,976,717,896.45/71,119.17
  6. Step 6: Final answer
    x = 27,794.45

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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.