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Finding the Fourth Proportional to 45,603.56, 68,353.50 and 19,291.88

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Solution

The fourth proportional to 45,603.56, 68,353.50 and 19,291.88 is: 28,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,603.56 : 68,353.50 = 19,291.88 : x
  2. Step 2: Convert to fraction form
    45,603.56/68,353.50 = 19,291.88/x
  3. Step 3: Cross multiply
    45,603.56x = 68,353.50 × 19,291.88
  4. Step 4: Simplify right side
    45,603.56x = 1,318,667,519.58
  5. Step 5: Solve for x
    x = 1,318,667,519.58/45,603.56
  6. Step 6: Final answer
    x = 28,915.89

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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.