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Finding the Fourth Proportional to 80,378.70, 110,918.76 and 44,079.36

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Solution

The fourth proportional to 80,378.70, 110,918.76 and 44,079.36 is: 60,827.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,378.70 : 110,918.76 = 44,079.36 : x
  2. Step 2: Convert to fraction form
    80,378.70/110,918.76 = 44,079.36/x
  3. Step 3: Cross multiply
    80,378.70x = 110,918.76 × 44,079.36
  4. Step 4: Simplify right side
    80,378.70x = 4,889,227,952.79
  5. Step 5: Solve for x
    x = 4,889,227,952.79/80,378.70
  6. Step 6: Final answer
    x = 60,827.41

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1.5x scale

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.