Home / 77,111.64-106,413.44-43,120.19

Finding the Fourth Proportional to 77,111.64, 106,413.44 and 43,120.19

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Solution

The fourth proportional to 77,111.64, 106,413.44 and 43,120.19 is: 59,505.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,111.64 : 106,413.44 = 43,120.19 : x
  2. Step 2: Convert to fraction form
    77,111.64/106,413.44 = 43,120.19/x
  3. Step 3: Cross multiply
    77,111.64x = 106,413.44 × 43,120.19
  4. Step 4: Simplify right side
    77,111.64x = 4,588,567,801.79
  5. Step 5: Solve for x
    x = 4,588,567,801.79/77,111.64
  6. Step 6: Final answer
    x = 59,505.51

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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.