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Finding the Fourth Proportional to 73,504.89, 110,260.98 and 20,918.07

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Solution

The fourth proportional to 73,504.89, 110,260.98 and 20,918.07 is: 31,378.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,504.89 : 110,260.98 = 20,918.07 : x
  2. Step 2: Convert to fraction form
    73,504.89/110,260.98 = 20,918.07/x
  3. Step 3: Cross multiply
    73,504.89x = 110,260.98 × 20,918.07
  4. Step 4: Simplify right side
    73,504.89x = 2,306,446,897.91
  5. Step 5: Solve for x
    x = 2,306,446,897.91/73,504.89
  6. Step 6: Final answer
    x = 31,378.14

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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.