Home / 75,809.45-113,621.93-53,629.22

Finding the Fourth Proportional to 75,809.45, 113,621.93 and 53,629.22

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Solution

The fourth proportional to 75,809.45, 113,621.93 and 53,629.22 is: 80,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,809.45 : 113,621.93 = 53,629.22 : x
  2. Step 2: Convert to fraction form
    75,809.45/113,621.93 = 53,629.22/x
  3. Step 3: Cross multiply
    75,809.45x = 113,621.93 × 53,629.22
  4. Step 4: Simplify right side
    75,809.45x = 6,093,455,480.79
  5. Step 5: Solve for x
    x = 6,093,455,480.79/75,809.45
  6. Step 6: Final answer
    x = 80,378.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.