Home / 66,995.34-92,450.10-39,772.56

Finding the Fourth Proportional to 66,995.34, 92,450.10 and 39,772.56

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Solution

The fourth proportional to 66,995.34, 92,450.10 and 39,772.56 is: 54,884.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,995.34 : 92,450.10 = 39,772.56 : x
  2. Step 2: Convert to fraction form
    66,995.34/92,450.10 = 39,772.56/x
  3. Step 3: Cross multiply
    66,995.34x = 92,450.10 × 39,772.56
  4. Step 4: Simplify right side
    66,995.34x = 3,676,977,149.26
  5. Step 5: Solve for x
    x = 3,676,977,149.26/66,995.34
  6. Step 6: Final answer
    x = 54,884.07

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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.