Home / 86,995.47-120,051.77-50,694.64

Finding the Fourth Proportional to 86,995.47, 120,051.77 and 50,694.64

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Solution

The fourth proportional to 86,995.47, 120,051.77 and 50,694.64 is: 69,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,995.47 : 120,051.77 = 50,694.64 : x
  2. Step 2: Convert to fraction form
    86,995.47/120,051.77 = 50,694.64/x
  3. Step 3: Cross multiply
    86,995.47x = 120,051.77 × 50,694.64
  4. Step 4: Simplify right side
    86,995.47x = 6,085,981,158.10
  5. Step 5: Solve for x
    x = 6,085,981,158.10/86,995.47
  6. Step 6: Final answer
    x = 69,957.45

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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.