Home / 45,806.51-68,707.96-19,145.61

Finding the Fourth Proportional to 45,806.51, 68,707.96 and 19,145.61

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Solution

The fourth proportional to 45,806.51, 68,707.96 and 19,145.61 is: 28,717.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,806.51 : 68,707.96 = 19,145.61 : x
  2. Step 2: Convert to fraction form
    45,806.51/68,707.96 = 19,145.61/x
  3. Step 3: Cross multiply
    45,806.51x = 68,707.96 × 19,145.61
  4. Step 4: Simplify right side
    45,806.51x = 1,315,455,757.83
  5. Step 5: Solve for x
    x = 1,315,455,757.83/45,806.51
  6. Step 6: Final answer
    x = 28,717.66

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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.