Home / 51,797.75-77,678.96-20,205.32

Finding the Fourth Proportional to 51,797.75, 77,678.96 and 20,205.32

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Solution

The fourth proportional to 51,797.75, 77,678.96 and 20,205.32 is: 30,301.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,797.75 : 77,678.96 = 20,205.32 : x
  2. Step 2: Convert to fraction form
    51,797.75/77,678.96 = 20,205.32/x
  3. Step 3: Cross multiply
    51,797.75x = 77,678.96 × 20,205.32
  4. Step 4: Simplify right side
    51,797.75x = 1,569,527,754.65
  5. Step 5: Solve for x
    x = 1,569,527,754.65/51,797.75
  6. Step 6: Final answer
    x = 30,301.08

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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.