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Finding the Fourth Proportional to 66,647.40, 99,976.32 and 22,274.25

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Solution

The fourth proportional to 66,647.40, 99,976.32 and 22,274.25 is: 33,413.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,647.40 : 99,976.32 = 22,274.25 : x
  2. Step 2: Convert to fraction form
    66,647.40/99,976.32 = 22,274.25/x
  3. Step 3: Cross multiply
    66,647.40x = 99,976.32 × 22,274.25
  4. Step 4: Simplify right side
    66,647.40x = 2,226,897,545.76
  5. Step 5: Solve for x
    x = 2,226,897,545.76/66,647.40
  6. Step 6: Final answer
    x = 33,413.12

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1.5x scale

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.