Home / 51,441.20-77,165.16-19,866.32

Finding the Fourth Proportional to 51,441.20, 77,165.16 and 19,866.32

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Solution

The fourth proportional to 51,441.20, 77,165.16 and 19,866.32 is: 29,800.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,441.20 : 77,165.16 = 19,866.32 : x
  2. Step 2: Convert to fraction form
    51,441.20/77,165.16 = 19,866.32/x
  3. Step 3: Cross multiply
    51,441.20x = 77,165.16 × 19,866.32
  4. Step 4: Simplify right side
    51,441.20x = 1,532,987,761.41
  5. Step 5: Solve for x
    x = 1,532,987,761.41/51,441.20
  6. Step 6: Final answer
    x = 29,800.78

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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.