Home / 57,680.10-86,520.15-54,399.60

Finding the Fourth Proportional to 57,680.10, 86,520.15 and 54,399.60

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Solution

The fourth proportional to 57,680.10, 86,520.15 and 54,399.60 is: 81,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,680.10 : 86,520.15 = 54,399.60 : x
  2. Step 2: Convert to fraction form
    57,680.10/86,520.15 = 54,399.60/x
  3. Step 3: Cross multiply
    57,680.10x = 86,520.15 × 54,399.60
  4. Step 4: Simplify right side
    57,680.10x = 4,706,661,551.94
  5. Step 5: Solve for x
    x = 4,706,661,551.94/57,680.10
  6. Step 6: Final answer
    x = 81,599.40

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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.