Home / 71,145.07-106,717.59-18,554.41

Finding the Fourth Proportional to 71,145.07, 106,717.59 and 18,554.41

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Solution

The fourth proportional to 71,145.07, 106,717.59 and 18,554.41 is: 27,831.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,145.07 : 106,717.59 = 18,554.41 : x
  2. Step 2: Convert to fraction form
    71,145.07/106,717.59 = 18,554.41/x
  3. Step 3: Cross multiply
    71,145.07x = 106,717.59 × 18,554.41
  4. Step 4: Simplify right side
    71,145.07x = 1,980,081,919.07
  5. Step 5: Solve for x
    x = 1,980,081,919.07/71,145.07
  6. Step 6: Final answer
    x = 27,831.61

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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.