Home / 86,997.56-130,512.74-27,817.34

Finding the Fourth Proportional to 86,997.56, 130,512.74 and 27,817.34

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Solution

The fourth proportional to 86,997.56, 130,512.74 and 27,817.34 is: 41,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,997.56 : 130,512.74 = 27,817.34 : x
  2. Step 2: Convert to fraction form
    86,997.56/130,512.74 = 27,817.34/x
  3. Step 3: Cross multiply
    86,997.56x = 130,512.74 × 27,817.34
  4. Step 4: Simplify right side
    86,997.56x = 3,630,516,471.26
  5. Step 5: Solve for x
    x = 3,630,516,471.26/86,997.56
  6. Step 6: Final answer
    x = 41,731.25

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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.