Home / 78,171.41-117,413.96-46,643.04

Finding the Fourth Proportional to 78,171.41, 117,413.96 and 46,643.04

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Solution

The fourth proportional to 78,171.41, 117,413.96 and 46,643.04 is: 70,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,171.41 : 117,413.96 = 46,643.04 : x
  2. Step 2: Convert to fraction form
    78,171.41/117,413.96 = 46,643.04/x
  3. Step 3: Cross multiply
    78,171.41x = 117,413.96 × 46,643.04
  4. Step 4: Simplify right side
    78,171.41x = 5,476,543,799.62
  5. Step 5: Solve for x
    x = 5,476,543,799.62/78,171.41
  6. Step 6: Final answer
    x = 70,058.14

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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.