Home / 40,120.16-60,185.96-13,817.84

Finding the Fourth Proportional to 40,120.16, 60,185.96 and 13,817.84

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Solution

The fourth proportional to 40,120.16, 60,185.96 and 13,817.84 is: 20,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.16 : 60,185.96 = 13,817.84 : x
  2. Step 2: Convert to fraction form
    40,120.16/60,185.96 = 13,817.84/x
  3. Step 3: Cross multiply
    40,120.16x = 60,185.96 × 13,817.84
  4. Step 4: Simplify right side
    40,120.16x = 831,639,965.53
  5. Step 5: Solve for x
    x = 831,639,965.53/40,120.16
  6. Step 6: Final answer
    x = 20,728.73

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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.