Home / 51,190.88-70,644.72-28,221.44

Finding the Fourth Proportional to 51,190.88, 70,644.72 and 28,221.44

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Solution

The fourth proportional to 51,190.88, 70,644.72 and 28,221.44 is: 38,946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,190.88 : 70,644.72 = 28,221.44 : x
  2. Step 2: Convert to fraction form
    51,190.88/70,644.72 = 28,221.44/x
  3. Step 3: Cross multiply
    51,190.88x = 70,644.72 × 28,221.44
  4. Step 4: Simplify right side
    51,190.88x = 1,993,695,726.80
  5. Step 5: Solve for x
    x = 1,993,695,726.80/51,190.88
  6. Step 6: Final answer
    x = 38,946.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.