Home / 86,021.11-118,718.67-50,219.92

Finding the Fourth Proportional to 86,021.11, 118,718.67 and 50,219.92

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Solution

The fourth proportional to 86,021.11, 118,718.67 and 50,219.92 is: 69,309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,021.11 : 118,718.67 = 50,219.92 : x
  2. Step 2: Convert to fraction form
    86,021.11/118,718.67 = 50,219.92/x
  3. Step 3: Cross multiply
    86,021.11x = 118,718.67 × 50,219.92
  4. Step 4: Simplify right side
    86,021.11x = 5,962,042,109.91
  5. Step 5: Solve for x
    x = 5,962,042,109.91/86,021.11
  6. Step 6: Final answer
    x = 69,309.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.