Home / 74,276.51-111,413.45-68,491.09

Finding the Fourth Proportional to 74,276.51, 111,413.45 and 68,491.09

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Solution

The fourth proportional to 74,276.51, 111,413.45 and 68,491.09 is: 102,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,276.51 : 111,413.45 = 68,491.09 : x
  2. Step 2: Convert to fraction form
    74,276.51/111,413.45 = 68,491.09/x
  3. Step 3: Cross multiply
    74,276.51x = 111,413.45 × 68,491.09
  4. Step 4: Simplify right side
    74,276.51x = 7,630,828,631.16
  5. Step 5: Solve for x
    x = 7,630,828,631.16/74,276.51
  6. Step 6: Final answer
    x = 102,735.42

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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.