Home / 83,628.41-115,503.03-55,075.68

Finding the Fourth Proportional to 83,628.41, 115,503.03 and 55,075.68

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Solution

The fourth proportional to 83,628.41, 115,503.03 and 55,075.68 is: 76,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,628.41 : 115,503.03 = 55,075.68 : x
  2. Step 2: Convert to fraction form
    83,628.41/115,503.03 = 55,075.68/x
  3. Step 3: Cross multiply
    83,628.41x = 115,503.03 × 55,075.68
  4. Step 4: Simplify right side
    83,628.41x = 6,361,407,919.31
  5. Step 5: Solve for x
    x = 6,361,407,919.31/83,628.41
  6. Step 6: Final answer
    x = 76,067.55

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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.