Home / 53,413.70-80,064.05-20,119.35

Finding the Fourth Proportional to 53,413.70, 80,064.05 and 20,119.35

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Solution

The fourth proportional to 53,413.70, 80,064.05 and 20,119.35 is: 30,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,413.70 : 80,064.05 = 20,119.35 : x
  2. Step 2: Convert to fraction form
    53,413.70/80,064.05 = 20,119.35/x
  3. Step 3: Cross multiply
    53,413.70x = 80,064.05 × 20,119.35
  4. Step 4: Simplify right side
    53,413.70x = 1,610,836,844.01
  5. Step 5: Solve for x
    x = 1,610,836,844.01/53,413.70
  6. Step 6: Final answer
    x = 30,157.75

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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.