Home / 70,182.06-96,857-39,976.84

Finding the Fourth Proportional to 70,182.06, 96,857 and 39,976.84

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Solution

The fourth proportional to 70,182.06, 96,857 and 39,976.84 is: 55,171.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,182.06 : 96,857 = 39,976.84 : x
  2. Step 2: Convert to fraction form
    70,182.06/96,857 = 39,976.84/x
  3. Step 3: Cross multiply
    70,182.06x = 96,857 × 39,976.84
  4. Step 4: Simplify right side
    70,182.06x = 3,872,036,791.88
  5. Step 5: Solve for x
    x = 3,872,036,791.88/70,182.06
  6. Step 6: Final answer
    x = 55,171.32

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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.