Home / 66,289.69-99,413.38-21,908.17

Finding the Fourth Proportional to 66,289.69, 99,413.38 and 21,908.17

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Solution

The fourth proportional to 66,289.69, 99,413.38 and 21,908.17 is: 32,855.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,289.69 : 99,413.38 = 21,908.17 : x
  2. Step 2: Convert to fraction form
    66,289.69/99,413.38 = 21,908.17/x
  3. Step 3: Cross multiply
    66,289.69x = 99,413.38 × 21,908.17
  4. Step 4: Simplify right side
    66,289.69x = 2,177,964,622.71
  5. Step 5: Solve for x
    x = 2,177,964,622.71/66,289.69
  6. Step 6: Final answer
    x = 32,855.26

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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.