Home / 66,832.23-92,226.18-39,960.78

Finding the Fourth Proportional to 66,832.23, 92,226.18 and 39,960.78

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Solution

The fourth proportional to 66,832.23, 92,226.18 and 39,960.78 is: 55,144.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,832.23 : 92,226.18 = 39,960.78 : x
  2. Step 2: Convert to fraction form
    66,832.23/92,226.18 = 39,960.78/x
  3. Step 3: Cross multiply
    66,832.23x = 92,226.18 × 39,960.78
  4. Step 4: Simplify right side
    66,832.23x = 3,685,430,089.22
  5. Step 5: Solve for x
    x = 3,685,430,089.22/66,832.23
  6. Step 6: Final answer
    x = 55,144.50

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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.