Home / 86,186.69-118,940.06-47,947.46

Finding the Fourth Proportional to 86,186.69, 118,940.06 and 47,947.46

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Solution

The fourth proportional to 86,186.69, 118,940.06 and 47,947.46 is: 66,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,186.69 : 118,940.06 = 47,947.46 : x
  2. Step 2: Convert to fraction form
    86,186.69/118,940.06 = 47,947.46/x
  3. Step 3: Cross multiply
    86,186.69x = 118,940.06 × 47,947.46
  4. Step 4: Simplify right side
    86,186.69x = 5,702,873,769.25
  5. Step 5: Solve for x
    x = 5,702,873,769.25/86,186.69
  6. Step 6: Final answer
    x = 66,168.85

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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.