Home / 66,639.54-99,958.59-19,892.82

Finding the Fourth Proportional to 66,639.54, 99,958.59 and 19,892.82

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Solution

The fourth proportional to 66,639.54, 99,958.59 and 19,892.82 is: 29,839.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,639.54 : 99,958.59 = 19,892.82 : x
  2. Step 2: Convert to fraction form
    66,639.54/99,958.59 = 19,892.82/x
  3. Step 3: Cross multiply
    66,639.54x = 99,958.59 × 19,892.82
  4. Step 4: Simplify right side
    66,639.54x = 1,988,458,238.32
  5. Step 5: Solve for x
    x = 1,988,458,238.32/66,639.54
  6. Step 6: Final answer
    x = 29,839.02

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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.