Home / 53,206.92-79,812.05-19,920.65

Finding the Fourth Proportional to 53,206.92, 79,812.05 and 19,920.65

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Solution

The fourth proportional to 53,206.92, 79,812.05 and 19,920.65 is: 29,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,206.92 : 79,812.05 = 19,920.65 : x
  2. Step 2: Convert to fraction form
    53,206.92/79,812.05 = 19,920.65/x
  3. Step 3: Cross multiply
    53,206.92x = 79,812.05 × 19,920.65
  4. Step 4: Simplify right side
    53,206.92x = 1,589,907,415.17
  5. Step 5: Solve for x
    x = 1,589,907,415.17/53,206.92
  6. Step 6: Final answer
    x = 29,881.59

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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.