Home / 86,741.81-119,771.54-66,566.73

Finding the Fourth Proportional to 86,741.81, 119,771.54 and 66,566.73

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Solution

The fourth proportional to 86,741.81, 119,771.54 and 66,566.73 is: 91,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,741.81 : 119,771.54 = 66,566.73 : x
  2. Step 2: Convert to fraction form
    86,741.81/119,771.54 = 66,566.73/x
  3. Step 3: Cross multiply
    86,741.81x = 119,771.54 × 66,566.73
  4. Step 4: Simplify right side
    86,741.81x = 7,972,799,764.86
  5. Step 5: Solve for x
    x = 7,972,799,764.86/86,741.81
  6. Step 6: Final answer
    x = 91,914.15

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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.