Home / 86,119.36-129,181.47-23,789.86

Finding the Fourth Proportional to 86,119.36, 129,181.47 and 23,789.86

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Solution

The fourth proportional to 86,119.36, 129,181.47 and 23,789.86 is: 35,685.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,119.36 : 129,181.47 = 23,789.86 : x
  2. Step 2: Convert to fraction form
    86,119.36/129,181.47 = 23,789.86/x
  3. Step 3: Cross multiply
    86,119.36x = 129,181.47 × 23,789.86
  4. Step 4: Simplify right side
    86,119.36x = 3,073,208,673.73
  5. Step 5: Solve for x
    x = 3,073,208,673.73/86,119.36
  6. Step 6: Final answer
    x = 35,685.46

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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.