Home / 45,143.58-67,721.13-17,080.86

Finding the Fourth Proportional to 45,143.58, 67,721.13 and 17,080.86

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Solution

The fourth proportional to 45,143.58, 67,721.13 and 17,080.86 is: 25,623.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,143.58 : 67,721.13 = 17,080.86 : x
  2. Step 2: Convert to fraction form
    45,143.58/67,721.13 = 17,080.86/x
  3. Step 3: Cross multiply
    45,143.58x = 67,721.13 × 17,080.86
  4. Step 4: Simplify right side
    45,143.58x = 1,156,735,140.57
  5. Step 5: Solve for x
    x = 1,156,735,140.57/45,143.58
  6. Step 6: Final answer
    x = 25,623.47

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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.