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Finding the Fourth Proportional to 60,370, 90,560 and 18,817

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Solution

The fourth proportional to 60,370, 90,560 and 18,817 is: 28,227.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,370 : 90,560 = 18,817 : x
  2. Step 2: Convert to fraction form
    60,370/90,560 = 18,817/x
  3. Step 3: Cross multiply
    60,370x = 90,560 × 18,817
  4. Step 4: Simplify right side
    60,370x = 1,704,067,520
  5. Step 5: Solve for x
    x = 1,704,067,520/60,370
  6. Step 6: Final answer
    x = 28,227.06

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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.