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Finding the Fourth Proportional to 86,013.77, 118,694.77 and 50,205.29

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Solution

The fourth proportional to 86,013.77, 118,694.77 and 50,205.29 is: 69,280.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,013.77 : 118,694.77 = 50,205.29 : x
  2. Step 2: Convert to fraction form
    86,013.77/118,694.77 = 50,205.29/x
  3. Step 3: Cross multiply
    86,013.77x = 118,694.77 × 50,205.29
  4. Step 4: Simplify right side
    86,013.77x = 5,959,104,630.35
  5. Step 5: Solve for x
    x = 5,959,104,630.35/86,013.77
  6. Step 6: Final answer
    x = 69,280.83

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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.