Home / 86,968.67-120,074.33-66,789.34

Finding the Fourth Proportional to 86,968.67, 120,074.33 and 66,789.34

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Solution

The fourth proportional to 86,968.67, 120,074.33 and 66,789.34 is: 92,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,968.67 : 120,074.33 = 66,789.34 : x
  2. Step 2: Convert to fraction form
    86,968.67/120,074.33 = 66,789.34/x
  3. Step 3: Cross multiply
    86,968.67x = 120,074.33 × 66,789.34
  4. Step 4: Simplify right side
    86,968.67x = 8,019,684,317.32
  5. Step 5: Solve for x
    x = 8,019,684,317.32/86,968.67
  6. Step 6: Final answer
    x = 92,213.49

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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.