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Finding the Fourth Proportional to 51,101.90, 70,524.01 and 28,440.64

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Solution

The fourth proportional to 51,101.90, 70,524.01 and 28,440.64 is: 39,249.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,101.90 : 70,524.01 = 28,440.64 : x
  2. Step 2: Convert to fraction form
    51,101.90/70,524.01 = 28,440.64/x
  3. Step 3: Cross multiply
    51,101.90x = 70,524.01 × 28,440.64
  4. Step 4: Simplify right side
    51,101.90x = 2,005,747,979.77
  5. Step 5: Solve for x
    x = 2,005,747,979.77/51,101.90
  6. Step 6: Final answer
    x = 39,249.97

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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.