Home / 86,997.12-130,504.32-27,817.92

Finding the Fourth Proportional to 86,997.12, 130,504.32 and 27,817.92

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Solution

The fourth proportional to 86,997.12, 130,504.32 and 27,817.92 is: 41,729.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,997.12 : 130,504.32 = 27,817.92 : x
  2. Step 2: Convert to fraction form
    86,997.12/130,504.32 = 27,817.92/x
  3. Step 3: Cross multiply
    86,997.12x = 130,504.32 × 27,817.92
  4. Step 4: Simplify right side
    86,997.12x = 3,630,358,733.41
  5. Step 5: Solve for x
    x = 3,630,358,733.41/86,997.12
  6. Step 6: Final answer
    x = 41,729.64

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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.