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Finding the Fourth Proportional to 45,354.84, 68,017.12 and 19,054.68

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Solution

The fourth proportional to 45,354.84, 68,017.12 and 19,054.68 is: 28,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,354.84 : 68,017.12 = 19,054.68 : x
  2. Step 2: Convert to fraction form
    45,354.84/68,017.12 = 19,054.68/x
  3. Step 3: Cross multiply
    45,354.84x = 68,017.12 × 19,054.68
  4. Step 4: Simplify right side
    45,354.84x = 1,296,044,456.12
  5. Step 5: Solve for x
    x = 1,296,044,456.12/45,354.84
  6. Step 6: Final answer
    x = 28,575.66

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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.