Home / 80,872.39-121,160.76-58,630.60

Finding the Fourth Proportional to 80,872.39, 121,160.76 and 58,630.60

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Solution

The fourth proportional to 80,872.39, 121,160.76 and 58,630.60 is: 87,838.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,872.39 : 121,160.76 = 58,630.60 : x
  2. Step 2: Convert to fraction form
    80,872.39/121,160.76 = 58,630.60/x
  3. Step 3: Cross multiply
    80,872.39x = 121,160.76 × 58,630.60
  4. Step 4: Simplify right side
    80,872.39x = 7,103,728,055.26
  5. Step 5: Solve for x
    x = 7,103,728,055.26/80,872.39
  6. Step 6: Final answer
    x = 87,838.73

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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.