Home / 86,999.12-120,056.78-50,698.26

Finding the Fourth Proportional to 86,999.12, 120,056.78 and 50,698.26

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Solution

The fourth proportional to 86,999.12, 120,056.78 and 50,698.26 is: 69,962.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,999.12 : 120,056.78 = 50,698.26 : x
  2. Step 2: Convert to fraction form
    86,999.12/120,056.78 = 50,698.26/x
  3. Step 3: Cross multiply
    86,999.12x = 120,056.78 × 50,698.26
  4. Step 4: Simplify right side
    86,999.12x = 6,086,669,847.20
  5. Step 5: Solve for x
    x = 6,086,669,847.20/86,999.12
  6. Step 6: Final answer
    x = 69,962.43

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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.