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Finding the Fourth Proportional to 53,259.39, 79,891.11 and 17,723.88

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Solution

The fourth proportional to 53,259.39, 79,891.11 and 17,723.88 is: 26,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,259.39 : 79,891.11 = 17,723.88 : x
  2. Step 2: Convert to fraction form
    53,259.39/79,891.11 = 17,723.88/x
  3. Step 3: Cross multiply
    53,259.39x = 79,891.11 × 17,723.88
  4. Step 4: Simplify right side
    53,259.39x = 1,415,980,446.71
  5. Step 5: Solve for x
    x = 1,415,980,446.71/53,259.39
  6. Step 6: Final answer
    x = 26,586.49

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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.