Home / 51,884.57-77,728.41-30,780.02

Finding the Fourth Proportional to 51,884.57, 77,728.41 and 30,780.02

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Solution

The fourth proportional to 51,884.57, 77,728.41 and 30,780.02 is: 46,111.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,884.57 : 77,728.41 = 30,780.02 : x
  2. Step 2: Convert to fraction form
    51,884.57/77,728.41 = 30,780.02/x
  3. Step 3: Cross multiply
    51,884.57x = 77,728.41 × 30,780.02
  4. Step 4: Simplify right side
    51,884.57x = 2,392,482,014.37
  5. Step 5: Solve for x
    x = 2,392,482,014.37/51,884.57
  6. Step 6: Final answer
    x = 46,111.63

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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.