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Finding the Fourth Proportional to 51,380.58, 77,074.65 and 21,795.06

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Solution

The fourth proportional to 51,380.58, 77,074.65 and 21,795.06 is: 32,694.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,380.58 : 77,074.65 = 21,795.06 : x
  2. Step 2: Convert to fraction form
    51,380.58/77,074.65 = 21,795.06/x
  3. Step 3: Cross multiply
    51,380.58x = 77,074.65 × 21,795.06
  4. Step 4: Simplify right side
    51,380.58x = 1,679,846,621.23
  5. Step 5: Solve for x
    x = 1,679,846,621.23/51,380.58
  6. Step 6: Final answer
    x = 32,694.19

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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.