Home / 86,857.86-130,309.25-50,864.71

Finding the Fourth Proportional to 86,857.86, 130,309.25 and 50,864.71

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Solution

The fourth proportional to 86,857.86, 130,309.25 and 50,864.71 is: 76,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,857.86 : 130,309.25 = 50,864.71 : x
  2. Step 2: Convert to fraction form
    86,857.86/130,309.25 = 50,864.71/x
  3. Step 3: Cross multiply
    86,857.86x = 130,309.25 × 50,864.71
  4. Step 4: Simplify right side
    86,857.86x = 6,628,142,012.96
  5. Step 5: Solve for x
    x = 6,628,142,012.96/86,857.86
  6. Step 6: Final answer
    x = 76,310.22

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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.