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Finding the Fourth Proportional to 53,289.84, 79,932.84 and 18,254.64

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Solution

The fourth proportional to 53,289.84, 79,932.84 and 18,254.64 is: 27,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,289.84 : 79,932.84 = 18,254.64 : x
  2. Step 2: Convert to fraction form
    53,289.84/79,932.84 = 18,254.64/x
  3. Step 3: Cross multiply
    53,289.84x = 79,932.84 × 18,254.64
  4. Step 4: Simplify right side
    53,289.84x = 1,459,145,218.38
  5. Step 5: Solve for x
    x = 1,459,145,218.38/53,289.84
  6. Step 6: Final answer
    x = 27,381.30

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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.