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Finding the Fourth Proportional to 69,204.08, 103,801.80 and 27,621.20

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Solution

The fourth proportional to 69,204.08, 103,801.80 and 27,621.20 is: 41,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,204.08 : 103,801.80 = 27,621.20 : x
  2. Step 2: Convert to fraction form
    69,204.08/103,801.80 = 27,621.20/x
  3. Step 3: Cross multiply
    69,204.08x = 103,801.80 × 27,621.20
  4. Step 4: Simplify right side
    69,204.08x = 2,867,130,278.16
  5. Step 5: Solve for x
    x = 2,867,130,278.16/69,204.08
  6. Step 6: Final answer
    x = 41,430.08

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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.