Home / 78,975.44-108,948.96-46,688.60

Finding the Fourth Proportional to 78,975.44, 108,948.96 and 46,688.60

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Solution

The fourth proportional to 78,975.44, 108,948.96 and 46,688.60 is: 64,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,975.44 : 108,948.96 = 46,688.60 : x
  2. Step 2: Convert to fraction form
    78,975.44/108,948.96 = 46,688.60/x
  3. Step 3: Cross multiply
    78,975.44x = 108,948.96 × 46,688.60
  4. Step 4: Simplify right side
    78,975.44x = 5,086,674,413.86
  5. Step 5: Solve for x
    x = 5,086,674,413.86/78,975.44
  6. Step 6: Final answer
    x = 64,408.31

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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.