Home / 85,197.75-127,813.05-38,450.63

Finding the Fourth Proportional to 85,197.75, 127,813.05 and 38,450.63

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Solution

The fourth proportional to 85,197.75, 127,813.05 and 38,450.63 is: 57,683.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,197.75 : 127,813.05 = 38,450.63 : x
  2. Step 2: Convert to fraction form
    85,197.75/127,813.05 = 38,450.63/x
  3. Step 3: Cross multiply
    85,197.75x = 127,813.05 × 38,450.63
  4. Step 4: Simplify right side
    85,197.75x = 4,914,491,655.66
  5. Step 5: Solve for x
    x = 4,914,491,655.66/85,197.75
  6. Step 6: Final answer
    x = 57,683.35

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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.