Home / 86,619.25-129,933.46-27,459.53

Finding the Fourth Proportional to 86,619.25, 129,933.46 and 27,459.53

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Solution

The fourth proportional to 86,619.25, 129,933.46 and 27,459.53 is: 41,190.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,619.25 : 129,933.46 = 27,459.53 : x
  2. Step 2: Convert to fraction form
    86,619.25/129,933.46 = 27,459.53/x
  3. Step 3: Cross multiply
    86,619.25x = 129,933.46 × 27,459.53
  4. Step 4: Simplify right side
    86,619.25x = 3,567,911,999.06
  5. Step 5: Solve for x
    x = 3,567,911,999.06/86,619.25
  6. Step 6: Final answer
    x = 41,190.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.