Home / 43,390.51-65,093.91-19,699.72

Finding the Fourth Proportional to 43,390.51, 65,093.91 and 19,699.72

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Solution

The fourth proportional to 43,390.51, 65,093.91 and 19,699.72 is: 29,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,390.51 : 65,093.91 = 19,699.72 : x
  2. Step 2: Convert to fraction form
    43,390.51/65,093.91 = 19,699.72/x
  3. Step 3: Cross multiply
    43,390.51x = 65,093.91 × 19,699.72
  4. Step 4: Simplify right side
    43,390.51x = 1,282,331,800.71
  5. Step 5: Solve for x
    x = 1,282,331,800.71/43,390.51
  6. Step 6: Final answer
    x = 29,553.28

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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.