Home / 47,819.80-71,643.30-40,907.80

Finding the Fourth Proportional to 47,819.80, 71,643.30 and 40,907.80

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Solution

The fourth proportional to 47,819.80, 71,643.30 and 40,907.80 is: 61,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,819.80 : 71,643.30 = 40,907.80 : x
  2. Step 2: Convert to fraction form
    47,819.80/71,643.30 = 40,907.80/x
  3. Step 3: Cross multiply
    47,819.80x = 71,643.30 × 40,907.80
  4. Step 4: Simplify right side
    47,819.80x = 2,930,769,787.74
  5. Step 5: Solve for x
    x = 2,930,769,787.74/47,819.80
  6. Step 6: Final answer
    x = 61,287.79

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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.