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Finding the Fourth Proportional to 64,489.18, 88,993.81 and 35,807.36

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Solution

The fourth proportional to 64,489.18, 88,993.81 and 35,807.36 is: 49,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,489.18 : 88,993.81 = 35,807.36 : x
  2. Step 2: Convert to fraction form
    64,489.18/88,993.81 = 35,807.36/x
  3. Step 3: Cross multiply
    64,489.18x = 88,993.81 × 35,807.36
  4. Step 4: Simplify right side
    64,489.18x = 3,186,633,392.44
  5. Step 5: Solve for x
    x = 3,186,633,392.44/64,489.18
  6. Step 6: Final answer
    x = 49,413.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.