Home / 86,420.60-119,286.80-50,131.22

Finding the Fourth Proportional to 86,420.60, 119,286.80 and 50,131.22

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Solution

The fourth proportional to 86,420.60, 119,286.80 and 50,131.22 is: 69,196.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,420.60 : 119,286.80 = 50,131.22 : x
  2. Step 2: Convert to fraction form
    86,420.60/119,286.80 = 50,131.22/x
  3. Step 3: Cross multiply
    86,420.60x = 119,286.80 × 50,131.22
  4. Step 4: Simplify right side
    86,420.60x = 5,979,992,980.47
  5. Step 5: Solve for x
    x = 5,979,992,980.47/86,420.60
  6. Step 6: Final answer
    x = 69,196.38

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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.