Home / 45,170.30-67,752.72-11,889.63

Finding the Fourth Proportional to 45,170.30, 67,752.72 and 11,889.63

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Solution

The fourth proportional to 45,170.30, 67,752.72 and 11,889.63 is: 17,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,170.30 : 67,752.72 = 11,889.63 : x
  2. Step 2: Convert to fraction form
    45,170.30/67,752.72 = 11,889.63/x
  3. Step 3: Cross multiply
    45,170.30x = 67,752.72 × 11,889.63
  4. Step 4: Simplify right side
    45,170.30x = 805,554,772.29
  5. Step 5: Solve for x
    x = 805,554,772.29/45,170.30
  6. Step 6: Final answer
    x = 17,833.73

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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.