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Finding the Fourth Proportional to 43,864.84, 65,751.09 and 18,899.02

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Solution

The fourth proportional to 43,864.84, 65,751.09 and 18,899.02 is: 28,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,864.84 : 65,751.09 = 18,899.02 : x
  2. Step 2: Convert to fraction form
    43,864.84/65,751.09 = 18,899.02/x
  3. Step 3: Cross multiply
    43,864.84x = 65,751.09 × 18,899.02
  4. Step 4: Simplify right side
    43,864.84x = 1,242,631,164.93
  5. Step 5: Solve for x
    x = 1,242,631,164.93/43,864.84
  6. Step 6: Final answer
    x = 28,328.64

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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.