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Finding the Fourth Proportional to 60,549, 90,838.08 and 18,996

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Solution

The fourth proportional to 60,549, 90,838.08 and 18,996 is: 28,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,549 : 90,838.08 = 18,996 : x
  2. Step 2: Convert to fraction form
    60,549/90,838.08 = 18,996/x
  3. Step 3: Cross multiply
    60,549x = 90,838.08 × 18,996
  4. Step 4: Simplify right side
    60,549x = 1,725,560,167.68
  5. Step 5: Solve for x
    x = 1,725,560,167.68/60,549
  6. Step 6: Final answer
    x = 28,498.57

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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.