Home / 86,186.32-118,969.32-50,387.80

Finding the Fourth Proportional to 86,186.32, 118,969.32 and 50,387.80

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Solution

The fourth proportional to 86,186.32, 118,969.32 and 50,387.80 is: 69,553.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,186.32 : 118,969.32 = 50,387.80 : x
  2. Step 2: Convert to fraction form
    86,186.32/118,969.32 = 50,387.80/x
  3. Step 3: Cross multiply
    86,186.32x = 118,969.32 × 50,387.80
  4. Step 4: Simplify right side
    86,186.32x = 5,994,602,302.30
  5. Step 5: Solve for x
    x = 5,994,602,302.30/86,186.32
  6. Step 6: Final answer
    x = 69,553.99

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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.