Home / 85,782.25-128,673.38-23,452.75

Finding the Fourth Proportional to 85,782.25, 128,673.38 and 23,452.75

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Solution

The fourth proportional to 85,782.25, 128,673.38 and 23,452.75 is: 35,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,782.25 : 128,673.38 = 23,452.75 : x
  2. Step 2: Convert to fraction form
    85,782.25/128,673.38 = 23,452.75/x
  3. Step 3: Cross multiply
    85,782.25x = 128,673.38 × 23,452.75
  4. Step 4: Simplify right side
    85,782.25x = 3,017,744,612.80
  5. Step 5: Solve for x
    x = 3,017,744,612.80/85,782.25
  6. Step 6: Final answer
    x = 35,179.13

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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.