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Finding the Fourth Proportional to 45,009.60, 67,470.52 and 17,983.89

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Solution

The fourth proportional to 45,009.60, 67,470.52 and 17,983.89 is: 26,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,009.60 : 67,470.52 = 17,983.89 : x
  2. Step 2: Convert to fraction form
    45,009.60/67,470.52 = 17,983.89/x
  3. Step 3: Cross multiply
    45,009.60x = 67,470.52 × 17,983.89
  4. Step 4: Simplify right side
    45,009.60x = 1,213,382,213.11
  5. Step 5: Solve for x
    x = 1,213,382,213.11/45,009.60
  6. Step 6: Final answer
    x = 26,958.30

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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.