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Finding the Fourth Proportional to 45,347.40, 68,009.76 and 19,071

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Solution

The fourth proportional to 45,347.40, 68,009.76 and 19,071 is: 28,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,347.40 : 68,009.76 = 19,071 : x
  2. Step 2: Convert to fraction form
    45,347.40/68,009.76 = 19,071/x
  3. Step 3: Cross multiply
    45,347.40x = 68,009.76 × 19,071
  4. Step 4: Simplify right side
    45,347.40x = 1,297,014,132.96
  5. Step 5: Solve for x
    x = 1,297,014,132.96/45,347.40
  6. Step 6: Final answer
    x = 28,601.73

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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.