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Finding the Fourth Proportional to 65,562.54, 98,341.26 and 18,815.40

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Solution

The fourth proportional to 65,562.54, 98,341.26 and 18,815.40 is: 28,222.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,562.54 : 98,341.26 = 18,815.40 : x
  2. Step 2: Convert to fraction form
    65,562.54/98,341.26 = 18,815.40/x
  3. Step 3: Cross multiply
    65,562.54x = 98,341.26 × 18,815.40
  4. Step 4: Simplify right side
    65,562.54x = 1,850,330,143.40
  5. Step 5: Solve for x
    x = 1,850,330,143.40/65,562.54
  6. Step 6: Final answer
    x = 28,222.37

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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.