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Finding the Fourth Proportional to 69,155.50, 103,733.34 and 19,235.60

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Solution

The fourth proportional to 69,155.50, 103,733.34 and 19,235.60 is: 28,853.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,155.50 : 103,733.34 = 19,235.60 : x
  2. Step 2: Convert to fraction form
    69,155.50/103,733.34 = 19,235.60/x
  3. Step 3: Cross multiply
    69,155.50x = 103,733.34 × 19,235.60
  4. Step 4: Simplify right side
    69,155.50x = 1,995,373,034.90
  5. Step 5: Solve for x
    x = 1,995,373,034.90/69,155.50
  6. Step 6: Final answer
    x = 28,853.43

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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.