Home / 85,627.44-128,409.21-29,451.65

Finding the Fourth Proportional to 85,627.44, 128,409.21 and 29,451.65

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Solution

The fourth proportional to 85,627.44, 128,409.21 and 29,451.65 is: 44,166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,627.44 : 128,409.21 = 29,451.65 : x
  2. Step 2: Convert to fraction form
    85,627.44/128,409.21 = 29,451.65/x
  3. Step 3: Cross multiply
    85,627.44x = 128,409.21 × 29,451.65
  4. Step 4: Simplify right side
    85,627.44x = 3,781,862,467.65
  5. Step 5: Solve for x
    x = 3,781,862,467.65/85,627.44
  6. Step 6: Final answer
    x = 44,166.48

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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.