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Finding the Fourth Proportional to 62,666, 93,999 and 18,890

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Solution

The fourth proportional to 62,666, 93,999 and 18,890 is: 28,335

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,666 : 93,999 = 18,890 : x
  2. Step 2: Convert to fraction form
    62,666/93,999 = 18,890/x
  3. Step 3: Cross multiply
    62,666x = 93,999 × 18,890
  4. Step 4: Simplify right side
    62,666x = 1,775,641,110
  5. Step 5: Solve for x
    x = 1,775,641,110/62,666
  6. Step 6: Final answer
    x = 28,335

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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.