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Finding the Fourth Proportional to 86,997.42, 130,474.83 and 27,820.83

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Solution

The fourth proportional to 86,997.42, 130,474.83 and 27,820.83 is: 41,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,997.42 : 130,474.83 = 27,820.83 : x
  2. Step 2: Convert to fraction form
    86,997.42/130,474.83 = 27,820.83/x
  3. Step 3: Cross multiply
    86,997.42x = 130,474.83 × 27,820.83
  4. Step 4: Simplify right side
    86,997.42x = 3,629,918,064.71
  5. Step 5: Solve for x
    x = 3,629,918,064.71/86,997.42
  6. Step 6: Final answer
    x = 41,724.43

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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.