Home / 45,118.82-67,684.71-13,956.50

Finding the Fourth Proportional to 45,118.82, 67,684.71 and 13,956.50

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Solution

The fourth proportional to 45,118.82, 67,684.71 and 13,956.50 is: 20,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,118.82 : 67,684.71 = 13,956.50 : x
  2. Step 2: Convert to fraction form
    45,118.82/67,684.71 = 13,956.50/x
  3. Step 3: Cross multiply
    45,118.82x = 67,684.71 × 13,956.50
  4. Step 4: Simplify right side
    45,118.82x = 944,641,655.12
  5. Step 5: Solve for x
    x = 944,641,655.12/45,118.82
  6. Step 6: Final answer
    x = 20,936.75

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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.