Home / 83,634.42-115,511.31-55,081.68

Finding the Fourth Proportional to 83,634.42, 115,511.31 and 55,081.68

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Solution

The fourth proportional to 83,634.42, 115,511.31 and 55,081.68 is: 76,075.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,634.42 : 115,511.31 = 55,081.68 : x
  2. Step 2: Convert to fraction form
    83,634.42/115,511.31 = 55,081.68/x
  3. Step 3: Cross multiply
    83,634.42x = 115,511.31 × 55,081.68
  4. Step 4: Simplify right side
    83,634.42x = 6,362,557,013.80
  5. Step 5: Solve for x
    x = 6,362,557,013.80/83,634.42
  6. Step 6: Final answer
    x = 76,075.82

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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.