Home / 45,813.84-68,720.81-12,531.44

Finding the Fourth Proportional to 45,813.84, 68,720.81 and 12,531.44

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Solution

The fourth proportional to 45,813.84, 68,720.81 and 12,531.44 is: 18,797.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,813.84 : 68,720.81 = 12,531.44 : x
  2. Step 2: Convert to fraction form
    45,813.84/68,720.81 = 12,531.44/x
  3. Step 3: Cross multiply
    45,813.84x = 68,720.81 × 12,531.44
  4. Step 4: Simplify right side
    45,813.84x = 861,170,707.27
  5. Step 5: Solve for x
    x = 861,170,707.27/45,813.84
  6. Step 6: Final answer
    x = 18,797.17

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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.