Home / 47,939.16-66,156.11-28,819.14

Finding the Fourth Proportional to 47,939.16, 66,156.11 and 28,819.14

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Solution

The fourth proportional to 47,939.16, 66,156.11 and 28,819.14 is: 39,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,939.16 : 66,156.11 = 28,819.14 : x
  2. Step 2: Convert to fraction form
    47,939.16/66,156.11 = 28,819.14/x
  3. Step 3: Cross multiply
    47,939.16x = 66,156.11 × 28,819.14
  4. Step 4: Simplify right side
    47,939.16x = 1,906,562,051.85
  5. Step 5: Solve for x
    x = 1,906,562,051.85/47,939.16
  6. Step 6: Final answer
    x = 39,770.45

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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.