Home / 80,853.04-121,292.52-34,112.80

Finding the Fourth Proportional to 80,853.04, 121,292.52 and 34,112.80

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Solution

The fourth proportional to 80,853.04, 121,292.52 and 34,112.80 is: 51,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,853.04 : 121,292.52 = 34,112.80 : x
  2. Step 2: Convert to fraction form
    80,853.04/121,292.52 = 34,112.80/x
  3. Step 3: Cross multiply
    80,853.04x = 121,292.52 × 34,112.80
  4. Step 4: Simplify right side
    80,853.04x = 4,137,627,476.26
  5. Step 5: Solve for x
    x = 4,137,627,476.26/80,853.04
  6. Step 6: Final answer
    x = 51,174.67

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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.