Home / 45,820.51-68,731.67-20,843.15

Finding the Fourth Proportional to 45,820.51, 68,731.67 and 20,843.15

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Solution

The fourth proportional to 45,820.51, 68,731.67 and 20,843.15 is: 31,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,820.51 : 68,731.67 = 20,843.15 : x
  2. Step 2: Convert to fraction form
    45,820.51/68,731.67 = 20,843.15/x
  3. Step 3: Cross multiply
    45,820.51x = 68,731.67 × 20,843.15
  4. Step 4: Simplify right side
    45,820.51x = 1,432,584,216.01
  5. Step 5: Solve for x
    x = 1,432,584,216.01/45,820.51
  6. Step 6: Final answer
    x = 31,265.13

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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.