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Finding the Fourth Proportional to 65,367.34, 98,048.98 and 18,620.21

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Solution

The fourth proportional to 65,367.34, 98,048.98 and 18,620.21 is: 27,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,367.34 : 98,048.98 = 18,620.21 : x
  2. Step 2: Convert to fraction form
    65,367.34/98,048.98 = 18,620.21/x
  3. Step 3: Cross multiply
    65,367.34x = 98,048.98 × 18,620.21
  4. Step 4: Simplify right side
    65,367.34x = 1,825,692,866.28
  5. Step 5: Solve for x
    x = 1,825,692,866.28/65,367.34
  6. Step 6: Final answer
    x = 27,929.74

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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.