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Finding the Fourth Proportional to 50,856, 70,185.60 and 28,504.32

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Solution

The fourth proportional to 50,856, 70,185.60 and 28,504.32 is: 39,338.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,856 : 70,185.60 = 28,504.32 : x
  2. Step 2: Convert to fraction form
    50,856/70,185.60 = 28,504.32/x
  3. Step 3: Cross multiply
    50,856x = 70,185.60 × 28,504.32
  4. Step 4: Simplify right side
    50,856x = 2,000,592,801.79
  5. Step 5: Solve for x
    x = 2,000,592,801.79/50,856
  6. Step 6: Final answer
    x = 39,338.38

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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.