Home / 76,870.98-115,317.18-26,939.52

Finding the Fourth Proportional to 76,870.98, 115,317.18 and 26,939.52

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Solution

The fourth proportional to 76,870.98, 115,317.18 and 26,939.52 is: 40,413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,870.98 : 115,317.18 = 26,939.52 : x
  2. Step 2: Convert to fraction form
    76,870.98/115,317.18 = 26,939.52/x
  3. Step 3: Cross multiply
    76,870.98x = 115,317.18 × 26,939.52
  4. Step 4: Simplify right side
    76,870.98x = 3,106,589,476.95
  5. Step 5: Solve for x
    x = 3,106,589,476.95/76,870.98
  6. Step 6: Final answer
    x = 40,413.03

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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.