Home / 45,976.20-69,029.10-28,480.20

Finding the Fourth Proportional to 45,976.20, 69,029.10 and 28,480.20

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Solution

The fourth proportional to 45,976.20, 69,029.10 and 28,480.20 is: 42,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,976.20 : 69,029.10 = 28,480.20 : x
  2. Step 2: Convert to fraction form
    45,976.20/69,029.10 = 28,480.20/x
  3. Step 3: Cross multiply
    45,976.20x = 69,029.10 × 28,480.20
  4. Step 4: Simplify right side
    45,976.20x = 1,965,962,573.82
  5. Step 5: Solve for x
    x = 1,965,962,573.82/45,976.20
  6. Step 6: Final answer
    x = 42,760.44

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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.