Home / 86,147.94-118,884.54-47,910.96

Finding the Fourth Proportional to 86,147.94, 118,884.54 and 47,910.96

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Solution

The fourth proportional to 86,147.94, 118,884.54 and 47,910.96 is: 66,117.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,147.94 : 118,884.54 = 47,910.96 : x
  2. Step 2: Convert to fraction form
    86,147.94/118,884.54 = 47,910.96/x
  3. Step 3: Cross multiply
    86,147.94x = 118,884.54 × 47,910.96
  4. Step 4: Simplify right side
    86,147.94x = 5,695,872,440.56
  5. Step 5: Solve for x
    x = 5,695,872,440.56/86,147.94
  6. Step 6: Final answer
    x = 66,117.34

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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.