Home / 84,919.54-117,215.07-54,704.77

Finding the Fourth Proportional to 84,919.54, 117,215.07 and 54,704.77

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Solution

The fourth proportional to 84,919.54, 117,215.07 and 54,704.77 is: 75,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,919.54 : 117,215.07 = 54,704.77 : x
  2. Step 2: Convert to fraction form
    84,919.54/117,215.07 = 54,704.77/x
  3. Step 3: Cross multiply
    84,919.54x = 117,215.07 × 54,704.77
  4. Step 4: Simplify right side
    84,919.54x = 6,412,223,408.27
  5. Step 5: Solve for x
    x = 6,412,223,408.27/84,919.54
  6. Step 6: Final answer
    x = 75,509.40

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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.