Home / 71,146.07-106,719.09-18,555.41

Finding the Fourth Proportional to 71,146.07, 106,719.09 and 18,555.41

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Solution

The fourth proportional to 71,146.07, 106,719.09 and 18,555.41 is: 27,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,146.07 : 106,719.09 = 18,555.41 : x
  2. Step 2: Convert to fraction form
    71,146.07/106,719.09 = 18,555.41/x
  3. Step 3: Cross multiply
    71,146.07x = 106,719.09 × 18,555.41
  4. Step 4: Simplify right side
    71,146.07x = 1,980,216,469.78
  5. Step 5: Solve for x
    x = 1,980,216,469.78/71,146.07
  6. Step 6: Final answer
    x = 27,833.11

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1.5x scale

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.