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Finding the Fourth Proportional to 69,485.60, 104,228.08 and 16,895.20

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Solution

The fourth proportional to 69,485.60, 104,228.08 and 16,895.20 is: 25,342.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,485.60 : 104,228.08 = 16,895.20 : x
  2. Step 2: Convert to fraction form
    69,485.60/104,228.08 = 16,895.20/x
  3. Step 3: Cross multiply
    69,485.60x = 104,228.08 × 16,895.20
  4. Step 4: Simplify right side
    69,485.60x = 1,760,954,257.22
  5. Step 5: Solve for x
    x = 1,760,954,257.22/69,485.60
  6. Step 6: Final answer
    x = 25,342.72

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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.