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Finding the Fourth Proportional to 50,587, 69,810.10 and 28,231

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Solution

The fourth proportional to 50,587, 69,810.10 and 28,231 is: 38,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,587 : 69,810.10 = 28,231 : x
  2. Step 2: Convert to fraction form
    50,587/69,810.10 = 28,231/x
  3. Step 3: Cross multiply
    50,587x = 69,810.10 × 28,231
  4. Step 4: Simplify right side
    50,587x = 1,970,808,933.10
  5. Step 5: Solve for x
    x = 1,970,808,933.10/50,587
  6. Step 6: Final answer
    x = 38,958.80

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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.