Home / 86,208.09-118,949.34-50,391.18

Finding the Fourth Proportional to 86,208.09, 118,949.34 and 50,391.18

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Solution

The fourth proportional to 86,208.09, 118,949.34 and 50,391.18 is: 69,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208.09 : 118,949.34 = 50,391.18 : x
  2. Step 2: Convert to fraction form
    86,208.09/118,949.34 = 50,391.18/x
  3. Step 3: Cross multiply
    86,208.09x = 118,949.34 × 50,391.18
  4. Step 4: Simplify right side
    86,208.09x = 5,993,997,008.07
  5. Step 5: Solve for x
    x = 5,993,997,008.07/86,208.09
  6. Step 6: Final answer
    x = 69,529.40

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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.