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Finding the Fourth Proportional to 65,662.77, 98,485.86 and 18,281.43

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Solution

The fourth proportional to 65,662.77, 98,485.86 and 18,281.43 is: 27,419.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,662.77 : 98,485.86 = 18,281.43 : x
  2. Step 2: Convert to fraction form
    65,662.77/98,485.86 = 18,281.43/x
  3. Step 3: Cross multiply
    65,662.77x = 98,485.86 × 18,281.43
  4. Step 4: Simplify right side
    65,662.77x = 1,800,462,355.58
  5. Step 5: Solve for x
    x = 1,800,462,355.58/65,662.77
  6. Step 6: Final answer
    x = 27,419.84

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1.5x scale

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.