Home / 85,563.21-128,363.12-25,596.39

Finding the Fourth Proportional to 85,563.21, 128,363.12 and 25,596.39

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Solution

The fourth proportional to 85,563.21, 128,363.12 and 25,596.39 is: 38,400.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,563.21 : 128,363.12 = 25,596.39 : x
  2. Step 2: Convert to fraction form
    85,563.21/128,363.12 = 25,596.39/x
  3. Step 3: Cross multiply
    85,563.21x = 128,363.12 × 25,596.39
  4. Step 4: Simplify right side
    85,563.21x = 3,285,632,353.15
  5. Step 5: Solve for x
    x = 3,285,632,353.15/85,563.21
  6. Step 6: Final answer
    x = 38,400.06

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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.