Home / 86,858.21-130,309.77-50,865.06

Finding the Fourth Proportional to 86,858.21, 130,309.77 and 50,865.06

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Solution

The fourth proportional to 86,858.21, 130,309.77 and 50,865.06 is: 76,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,858.21 : 130,309.77 = 50,865.06 : x
  2. Step 2: Convert to fraction form
    86,858.21/130,309.77 = 50,865.06/x
  3. Step 3: Cross multiply
    86,858.21x = 130,309.77 × 50,865.06
  4. Step 4: Simplify right side
    86,858.21x = 6,628,213,971.72
  5. Step 5: Solve for x
    x = 6,628,213,971.72/86,858.21
  6. Step 6: Final answer
    x = 76,310.74

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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.