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Finding the Fourth Proportional to 69,641.00, 96,106.89 and 39,425.70

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Solution

The fourth proportional to 69,641.00, 96,106.89 and 39,425.70 is: 54,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,641.00 : 96,106.89 = 39,425.70 : x
  2. Step 2: Convert to fraction form
    69,641.00/96,106.89 = 39,425.70/x
  3. Step 3: Cross multiply
    69,641.00x = 96,106.89 × 39,425.70
  4. Step 4: Simplify right side
    69,641.00x = 3,789,081,413.07
  5. Step 5: Solve for x
    x = 3,789,081,413.07/69,641.00
  6. Step 6: Final answer
    x = 54,408.78

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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.