Home / 45,457.11-68,185.72-13,865.50

Finding the Fourth Proportional to 45,457.11, 68,185.72 and 13,865.50

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Solution

The fourth proportional to 45,457.11, 68,185.72 and 13,865.50 is: 20,798.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,457.11 : 68,185.72 = 13,865.50 : x
  2. Step 2: Convert to fraction form
    45,457.11/68,185.72 = 13,865.50/x
  3. Step 3: Cross multiply
    45,457.11x = 68,185.72 × 13,865.50
  4. Step 4: Simplify right side
    45,457.11x = 945,429,100.66
  5. Step 5: Solve for x
    x = 945,429,100.66/45,457.11
  6. Step 6: Final answer
    x = 20,798.27

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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.