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Finding the Fourth Proportional to 40,243.40, 60,413.70 and 39,951.80

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Solution

The fourth proportional to 40,243.40, 60,413.70 and 39,951.80 is: 59,975.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,243.40 : 60,413.70 = 39,951.80 : x
  2. Step 2: Convert to fraction form
    40,243.40/60,413.70 = 39,951.80/x
  3. Step 3: Cross multiply
    40,243.40x = 60,413.70 × 39,951.80
  4. Step 4: Simplify right side
    40,243.40x = 2,413,636,059.66
  5. Step 5: Solve for x
    x = 2,413,636,059.66/40,243.40
  6. Step 6: Final answer
    x = 59,975.95

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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.