Home / 51,190.38-70,648.45-28,531.44

Finding the Fourth Proportional to 51,190.38, 70,648.45 and 28,531.44

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Solution

The fourth proportional to 51,190.38, 70,648.45 and 28,531.44 is: 39,376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,190.38 : 70,648.45 = 28,531.44 : x
  2. Step 2: Convert to fraction form
    51,190.38/70,648.45 = 28,531.44/x
  3. Step 3: Cross multiply
    51,190.38x = 70,648.45 × 28,531.44
  4. Step 4: Simplify right side
    51,190.38x = 2,015,701,659.03
  5. Step 5: Solve for x
    x = 2,015,701,659.03/51,190.38
  6. Step 6: Final answer
    x = 39,376.58

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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.