Home / 86,724.36-119,655.54-54,906.84

Finding the Fourth Proportional to 86,724.36, 119,655.54 and 54,906.84

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Solution

The fourth proportional to 86,724.36, 119,655.54 and 54,906.84 is: 75,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,724.36 : 119,655.54 = 54,906.84 : x
  2. Step 2: Convert to fraction form
    86,724.36/119,655.54 = 54,906.84/x
  3. Step 3: Cross multiply
    86,724.36x = 119,655.54 × 54,906.84
  4. Step 4: Simplify right side
    86,724.36x = 6,569,907,589.89
  5. Step 5: Solve for x
    x = 6,569,907,589.89/86,724.36
  6. Step 6: Final answer
    x = 75,756.20

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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.