Home / 84,646.80-116,759.52-54,471.36

Finding the Fourth Proportional to 84,646.80, 116,759.52 and 54,471.36

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Solution

The fourth proportional to 84,646.80, 116,759.52 and 54,471.36 is: 75,136.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,646.80 : 116,759.52 = 54,471.36 : x
  2. Step 2: Convert to fraction form
    84,646.80/116,759.52 = 54,471.36/x
  3. Step 3: Cross multiply
    84,646.80x = 116,759.52 × 54,471.36
  4. Step 4: Simplify right side
    84,646.80x = 6,360,049,847.35
  5. Step 5: Solve for x
    x = 6,360,049,847.35/84,646.80
  6. Step 6: Final answer
    x = 75,136.33

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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.