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Finding the Fourth Proportional to 79,969.32, 110,274.84 and 68,676.20

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Solution

The fourth proportional to 79,969.32, 110,274.84 and 68,676.20 is: 94,702.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,969.32 : 110,274.84 = 68,676.20 : x
  2. Step 2: Convert to fraction form
    79,969.32/110,274.84 = 68,676.20/x
  3. Step 3: Cross multiply
    79,969.32x = 110,274.84 × 68,676.20
  4. Step 4: Simplify right side
    79,969.32x = 7,573,256,966.81
  5. Step 5: Solve for x
    x = 7,573,256,966.81/79,969.32
  6. Step 6: Final answer
    x = 94,702.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.