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Finding the Fourth Proportional to 61,818.72, 92,745.36 and 20,294.88

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Solution

The fourth proportional to 61,818.72, 92,745.36 and 20,294.88 is: 30,447.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,818.72 : 92,745.36 = 20,294.88 : x
  2. Step 2: Convert to fraction form
    61,818.72/92,745.36 = 20,294.88/x
  3. Step 3: Cross multiply
    61,818.72x = 92,745.36 × 20,294.88
  4. Step 4: Simplify right side
    61,818.72x = 1,882,255,951.76
  5. Step 5: Solve for x
    x = 1,882,255,951.76/61,818.72
  6. Step 6: Final answer
    x = 30,447.99

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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.