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Finding the Fourth Proportional to 70,274.55, 105,413.53 and 27,578.16

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Solution

The fourth proportional to 70,274.55, 105,413.53 and 27,578.16 is: 41,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,274.55 : 105,413.53 = 27,578.16 : x
  2. Step 2: Convert to fraction form
    70,274.55/105,413.53 = 27,578.16/x
  3. Step 3: Cross multiply
    70,274.55x = 105,413.53 × 27,578.16
  4. Step 4: Simplify right side
    70,274.55x = 2,907,111,196.50
  5. Step 5: Solve for x
    x = 2,907,111,196.50/70,274.55
  6. Step 6: Final answer
    x = 41,367.91

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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.