Home / 66,731.88-92,086-36,511.18

Finding the Fourth Proportional to 66,731.88, 92,086 and 36,511.18

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Solution

The fourth proportional to 66,731.88, 92,086 and 36,511.18 is: 50,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,731.88 : 92,086 = 36,511.18 : x
  2. Step 2: Convert to fraction form
    66,731.88/92,086 = 36,511.18/x
  3. Step 3: Cross multiply
    66,731.88x = 92,086 × 36,511.18
  4. Step 4: Simplify right side
    66,731.88x = 3,362,168,521.48
  5. Step 5: Solve for x
    x = 3,362,168,521.48/66,731.88
  6. Step 6: Final answer
    x = 50,383.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.