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Finding the Fourth Proportional to 60,857, 91,285.50 and 19,304

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Solution

The fourth proportional to 60,857, 91,285.50 and 19,304 is: 28,956

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,857 : 91,285.50 = 19,304 : x
  2. Step 2: Convert to fraction form
    60,857/91,285.50 = 19,304/x
  3. Step 3: Cross multiply
    60,857x = 91,285.50 × 19,304
  4. Step 4: Simplify right side
    60,857x = 1,762,175,292
  5. Step 5: Solve for x
    x = 1,762,175,292/60,857
  6. Step 6: Final answer
    x = 28,956

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.