Home / 66,906.75-92,331.23-38,612.44

Finding the Fourth Proportional to 66,906.75, 92,331.23 and 38,612.44

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Solution

The fourth proportional to 66,906.75, 92,331.23 and 38,612.44 is: 53,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,906.75 : 92,331.23 = 38,612.44 : x
  2. Step 2: Convert to fraction form
    66,906.75/92,331.23 = 38,612.44/x
  3. Step 3: Cross multiply
    66,906.75x = 92,331.23 × 38,612.44
  4. Step 4: Simplify right side
    66,906.75x = 3,565,134,000.85
  5. Step 5: Solve for x
    x = 3,565,134,000.85/66,906.75
  6. Step 6: Final answer
    x = 53,285.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.