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Finding the Fourth Proportional to 72,275.70, 108,413.55 and 27,903.90

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Solution

The fourth proportional to 72,275.70, 108,413.55 and 27,903.90 is: 41,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,275.70 : 108,413.55 = 27,903.90 : x
  2. Step 2: Convert to fraction form
    72,275.70/108,413.55 = 27,903.90/x
  3. Step 3: Cross multiply
    72,275.70x = 108,413.55 × 27,903.90
  4. Step 4: Simplify right side
    72,275.70x = 3,025,160,857.85
  5. Step 5: Solve for x
    x = 3,025,160,857.85/72,275.70
  6. Step 6: Final answer
    x = 41,855.85

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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.