Home / 85,748.29-128,627.30-26,592.37

Finding the Fourth Proportional to 85,748.29, 128,627.30 and 26,592.37

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Solution

The fourth proportional to 85,748.29, 128,627.30 and 26,592.37 is: 39,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,748.29 : 128,627.30 = 26,592.37 : x
  2. Step 2: Convert to fraction form
    85,748.29/128,627.30 = 26,592.37/x
  3. Step 3: Cross multiply
    85,748.29x = 128,627.30 × 26,592.37
  4. Step 4: Simplify right side
    85,748.29x = 3,420,504,620.74
  5. Step 5: Solve for x
    x = 3,420,504,620.74/85,748.29
  6. Step 6: Final answer
    x = 39,890.06

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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.