Home / 55,771.08-76,964.22-30,622.20

Finding the Fourth Proportional to 55,771.08, 76,964.22 and 30,622.20

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Solution

The fourth proportional to 55,771.08, 76,964.22 and 30,622.20 is: 42,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,771.08 : 76,964.22 = 30,622.20 : x
  2. Step 2: Convert to fraction form
    55,771.08/76,964.22 = 30,622.20/x
  3. Step 3: Cross multiply
    55,771.08x = 76,964.22 × 30,622.20
  4. Step 4: Simplify right side
    55,771.08x = 2,356,813,737.68
  5. Step 5: Solve for x
    x = 2,356,813,737.68/55,771.08
  6. Step 6: Final answer
    x = 42,258.71

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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.