Home / 86,383.32-129,373.38-66,504.12

Finding the Fourth Proportional to 86,383.32, 129,373.38 and 66,504.12

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Solution

The fourth proportional to 86,383.32, 129,373.38 and 66,504.12 is: 99,600.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,383.32 : 129,373.38 = 66,504.12 : x
  2. Step 2: Convert to fraction form
    86,383.32/129,373.38 = 66,504.12/x
  3. Step 3: Cross multiply
    86,383.32x = 129,373.38 × 66,504.12
  4. Step 4: Simplify right side
    86,383.32x = 8,603,862,788.33
  5. Step 5: Solve for x
    x = 8,603,862,788.33/86,383.32
  6. Step 6: Final answer
    x = 99,600.97

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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.