Home / 65,990.86-98,976.46-21,619.26

Finding the Fourth Proportional to 65,990.86, 98,976.46 and 21,619.26

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Solution

The fourth proportional to 65,990.86, 98,976.46 and 21,619.26 is: 32,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,990.86 : 98,976.46 = 21,619.26 : x
  2. Step 2: Convert to fraction form
    65,990.86/98,976.46 = 21,619.26/x
  3. Step 3: Cross multiply
    65,990.86x = 98,976.46 × 21,619.26
  4. Step 4: Simplify right side
    65,990.86x = 2,139,797,822.62
  5. Step 5: Solve for x
    x = 2,139,797,822.62/65,990.86
  6. Step 6: Final answer
    x = 32,425.67

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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.