Home / 81,935.12-122,961-63,233.84

Finding the Fourth Proportional to 81,935.12, 122,961 and 63,233.84

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Solution

The fourth proportional to 81,935.12, 122,961 and 63,233.84 is: 94,895.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,935.12 : 122,961 = 63,233.84 : x
  2. Step 2: Convert to fraction form
    81,935.12/122,961 = 63,233.84/x
  3. Step 3: Cross multiply
    81,935.12x = 122,961 × 63,233.84
  4. Step 4: Simplify right side
    81,935.12x = 7,775,296,200.24
  5. Step 5: Solve for x
    x = 7,775,296,200.24/81,935.12
  6. Step 6: Final answer
    x = 94,895.77

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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.