Home / 68,413.52-102,623.16-21,665.36

Finding the Fourth Proportional to 68,413.52, 102,623.16 and 21,665.36

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Solution

The fourth proportional to 68,413.52, 102,623.16 and 21,665.36 is: 32,498.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,413.52 : 102,623.16 = 21,665.36 : x
  2. Step 2: Convert to fraction form
    68,413.52/102,623.16 = 21,665.36/x
  3. Step 3: Cross multiply
    68,413.52x = 102,623.16 × 21,665.36
  4. Step 4: Simplify right side
    68,413.52x = 2,223,367,705.74
  5. Step 5: Solve for x
    x = 2,223,367,705.74/68,413.52
  6. Step 6: Final answer
    x = 32,498.95

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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.