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Finding the Fourth Proportional to 36,905.90, 55,359.04 and 9,203.90

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Solution

The fourth proportional to 36,905.90, 55,359.04 and 9,203.90 is: 13,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,905.90 : 55,359.04 = 9,203.90 : x
  2. Step 2: Convert to fraction form
    36,905.90/55,359.04 = 9,203.90/x
  3. Step 3: Cross multiply
    36,905.90x = 55,359.04 × 9,203.90
  4. Step 4: Simplify right side
    36,905.90x = 509,519,068.26
  5. Step 5: Solve for x
    x = 509,519,068.26/36,905.90
  6. Step 6: Final answer
    x = 13,805.90

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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.