Home / 65,690.52-98,550.36-18,939.75

Finding the Fourth Proportional to 65,690.52, 98,550.36 and 18,939.75

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Solution

The fourth proportional to 65,690.52, 98,550.36 and 18,939.75 is: 28,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,690.52 : 98,550.36 = 18,939.75 : x
  2. Step 2: Convert to fraction form
    65,690.52/98,550.36 = 18,939.75/x
  3. Step 3: Cross multiply
    65,690.52x = 98,550.36 × 18,939.75
  4. Step 4: Simplify right side
    65,690.52x = 1,866,519,180.81
  5. Step 5: Solve for x
    x = 1,866,519,180.81/65,690.52
  6. Step 6: Final answer
    x = 28,413.83

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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.