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Finding the Fourth Proportional to 84,800.45, 127,200.68 and 43,328.45

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Solution

The fourth proportional to 84,800.45, 127,200.68 and 43,328.45 is: 64,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,800.45 : 127,200.68 = 43,328.45 : x
  2. Step 2: Convert to fraction form
    84,800.45/127,200.68 = 43,328.45/x
  3. Step 3: Cross multiply
    84,800.45x = 127,200.68 × 43,328.45
  4. Step 4: Simplify right side
    84,800.45x = 5,511,408,086.70
  5. Step 5: Solve for x
    x = 5,511,408,086.70/84,800.45
  6. Step 6: Final answer
    x = 64,992.68

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1.5x scale

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.