Home / 86,766.48-119,805.60-66,591.36

Finding the Fourth Proportional to 86,766.48, 119,805.60 and 66,591.36

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Solution

The fourth proportional to 86,766.48, 119,805.60 and 66,591.36 is: 91,948.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,766.48 : 119,805.60 = 66,591.36 : x
  2. Step 2: Convert to fraction form
    86,766.48/119,805.60 = 66,591.36/x
  3. Step 3: Cross multiply
    86,766.48x = 119,805.60 × 66,591.36
  4. Step 4: Simplify right side
    86,766.48x = 7,978,017,839.62
  5. Step 5: Solve for x
    x = 7,978,017,839.62/86,766.48
  6. Step 6: Final answer
    x = 91,948.16

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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.