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Finding the Fourth Proportional to 77,045.25, 106,320.39 and 43,054.01

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Solution

The fourth proportional to 77,045.25, 106,320.39 and 43,054.01 is: 59,413.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,045.25 : 106,320.39 = 43,054.01 : x
  2. Step 2: Convert to fraction form
    77,045.25/106,320.39 = 43,054.01/x
  3. Step 3: Cross multiply
    77,045.25x = 106,320.39 × 43,054.01
  4. Step 4: Simplify right side
    77,045.25x = 4,577,519,134.26
  5. Step 5: Solve for x
    x = 4,577,519,134.26/77,045.25
  6. Step 6: Final answer
    x = 59,413.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.