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Finding the Fourth Proportional to 67,809.09, 101,702.03 and 17,889.70

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Solution

The fourth proportional to 67,809.09, 101,702.03 and 17,889.70 is: 26,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,809.09 : 101,702.03 = 17,889.70 : x
  2. Step 2: Convert to fraction form
    67,809.09/101,702.03 = 17,889.70/x
  3. Step 3: Cross multiply
    67,809.09x = 101,702.03 × 17,889.70
  4. Step 4: Simplify right side
    67,809.09x = 1,819,418,843.77
  5. Step 5: Solve for x
    x = 1,819,418,843.77/67,809.09
  6. Step 6: Final answer
    x = 26,831.49

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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.