Home / 86,105.70-118,826.91-47,867.58

Finding the Fourth Proportional to 86,105.70, 118,826.91 and 47,867.58

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Solution

The fourth proportional to 86,105.70, 118,826.91 and 47,867.58 is: 66,057.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,105.70 : 118,826.91 = 47,867.58 : x
  2. Step 2: Convert to fraction form
    86,105.70/118,826.91 = 47,867.58/x
  3. Step 3: Cross multiply
    86,105.70x = 118,826.91 × 47,867.58
  4. Step 4: Simplify right side
    86,105.70x = 5,687,956,620.58
  5. Step 5: Solve for x
    x = 5,687,956,620.58/86,105.70
  6. Step 6: Final answer
    x = 66,057.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.