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Finding the Fourth Proportional to 45,071.78, 67,602.47 and 11,795.04

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Solution

The fourth proportional to 45,071.78, 67,602.47 and 11,795.04 is: 17,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,071.78 : 67,602.47 = 11,795.04 : x
  2. Step 2: Convert to fraction form
    45,071.78/67,602.47 = 11,795.04/x
  3. Step 3: Cross multiply
    45,071.78x = 67,602.47 × 11,795.04
  4. Step 4: Simplify right side
    45,071.78x = 797,373,778.77
  5. Step 5: Solve for x
    x = 797,373,778.77/45,071.78
  6. Step 6: Final answer
    x = 17,691.20

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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.