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Finding the Fourth Proportional to 69,070.28, 103,571.94 and 31,619.12

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Solution

The fourth proportional to 69,070.28, 103,571.94 and 31,619.12 is: 47,413.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,070.28 : 103,571.94 = 31,619.12 : x
  2. Step 2: Convert to fraction form
    69,070.28/103,571.94 = 31,619.12/x
  3. Step 3: Cross multiply
    69,070.28x = 103,571.94 × 31,619.12
  4. Step 4: Simplify right side
    69,070.28x = 3,274,853,599.49
  5. Step 5: Solve for x
    x = 3,274,853,599.49/69,070.28
  6. Step 6: Final answer
    x = 47,413.35

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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.