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Finding the Fourth Proportional to 86,181.92, 129,272.92 and 27,022.21

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Solution

The fourth proportional to 86,181.92, 129,272.92 and 27,022.21 is: 40,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,181.92 : 129,272.92 = 27,022.21 : x
  2. Step 2: Convert to fraction form
    86,181.92/129,272.92 = 27,022.21/x
  3. Step 3: Cross multiply
    86,181.92x = 129,272.92 × 27,022.21
  4. Step 4: Simplify right side
    86,181.92x = 3,493,239,574.34
  5. Step 5: Solve for x
    x = 3,493,239,574.34/86,181.92
  6. Step 6: Final answer
    x = 40,533.32

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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.