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Finding the Fourth Proportional to 85,653.65, 118,194.64 and 47,413.25

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Solution

The fourth proportional to 85,653.65, 118,194.64 and 47,413.25 is: 65,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,653.65 : 118,194.64 = 47,413.25 : x
  2. Step 2: Convert to fraction form
    85,653.65/118,194.64 = 47,413.25/x
  3. Step 3: Cross multiply
    85,653.65x = 118,194.64 × 47,413.25
  4. Step 4: Simplify right side
    85,653.65x = 5,603,992,015.40
  5. Step 5: Solve for x
    x = 5,603,992,015.40/85,653.65
  6. Step 6: Final answer
    x = 65,426.19

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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.