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Finding the Fourth Proportional to 61,999.75, 92,999.67 and 20,446.75

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Solution

The fourth proportional to 61,999.75, 92,999.67 and 20,446.75 is: 30,670.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,999.75 : 92,999.67 = 20,446.75 : x
  2. Step 2: Convert to fraction form
    61,999.75/92,999.67 = 20,446.75/x
  3. Step 3: Cross multiply
    61,999.75x = 92,999.67 × 20,446.75
  4. Step 4: Simplify right side
    61,999.75x = 1,901,541,002.57
  5. Step 5: Solve for x
    x = 1,901,541,002.57/61,999.75
  6. Step 6: Final answer
    x = 30,670.14

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1.5x scale

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.