Home / 85,496.30-128,236.85-38,113.73

Finding the Fourth Proportional to 85,496.30, 128,236.85 and 38,113.73

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Solution

The fourth proportional to 85,496.30, 128,236.85 and 38,113.73 is: 57,167.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,496.30 : 128,236.85 = 38,113.73 : x
  2. Step 2: Convert to fraction form
    85,496.30/128,236.85 = 38,113.73/x
  3. Step 3: Cross multiply
    85,496.30x = 128,236.85 × 38,113.73
  4. Step 4: Simplify right side
    85,496.30x = 4,887,584,676.95
  5. Step 5: Solve for x
    x = 4,887,584,676.95/85,496.30
  6. Step 6: Final answer
    x = 57,167.21

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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.