Home / 85,596.45-128,409.26-25,628.91

Finding the Fourth Proportional to 85,596.45, 128,409.26 and 25,628.91

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Solution

The fourth proportional to 85,596.45, 128,409.26 and 25,628.91 is: 38,447.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,596.45 : 128,409.26 = 25,628.91 : x
  2. Step 2: Convert to fraction form
    85,596.45/128,409.26 = 25,628.91/x
  3. Step 3: Cross multiply
    85,596.45x = 128,409.26 × 25,628.91
  4. Step 4: Simplify right side
    85,596.45x = 3,290,989,239.56
  5. Step 5: Solve for x
    x = 3,290,989,239.56/85,596.45
  6. Step 6: Final answer
    x = 38,447.73

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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.