Home / 69,826.80-104,740.20-54,255.60

Finding the Fourth Proportional to 69,826.80, 104,740.20 and 54,255.60

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Solution

The fourth proportional to 69,826.80, 104,740.20 and 54,255.60 is: 81,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,826.80 : 104,740.20 = 54,255.60 : x
  2. Step 2: Convert to fraction form
    69,826.80/104,740.20 = 54,255.60/x
  3. Step 3: Cross multiply
    69,826.80x = 104,740.20 × 54,255.60
  4. Step 4: Simplify right side
    69,826.80x = 5,682,742,395.12
  5. Step 5: Solve for x
    x = 5,682,742,395.12/69,826.80
  6. Step 6: Final answer
    x = 81,383.40

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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.