Home / 86,936.64-130,403.68-27,771.52

Finding the Fourth Proportional to 86,936.64, 130,403.68 and 27,771.52

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Solution

The fourth proportional to 86,936.64, 130,403.68 and 27,771.52 is: 41,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,936.64 : 130,403.68 = 27,771.52 : x
  2. Step 2: Convert to fraction form
    86,936.64/130,403.68 = 27,771.52/x
  3. Step 3: Cross multiply
    86,936.64x = 130,403.68 × 27,771.52
  4. Step 4: Simplify right side
    86,936.64x = 3,621,508,407.19
  5. Step 5: Solve for x
    x = 3,621,508,407.19/86,936.64
  6. Step 6: Final answer
    x = 41,656.87

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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.