Home / 85,311.70-127,992.14-26,156.09

Finding the Fourth Proportional to 85,311.70, 127,992.14 and 26,156.09

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Solution

The fourth proportional to 85,311.70, 127,992.14 and 26,156.09 is: 39,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,311.70 : 127,992.14 = 26,156.09 : x
  2. Step 2: Convert to fraction form
    85,311.70/127,992.14 = 26,156.09/x
  3. Step 3: Cross multiply
    85,311.70x = 127,992.14 × 26,156.09
  4. Step 4: Simplify right side
    85,311.70x = 3,347,773,802.35
  5. Step 5: Solve for x
    x = 3,347,773,802.35/85,311.70
  6. Step 6: Final answer
    x = 39,241.67

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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.