Home / 66,231.84-99,391.53-31,181.52

Finding the Fourth Proportional to 66,231.84, 99,391.53 and 31,181.52

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Solution

The fourth proportional to 66,231.84, 99,391.53 and 31,181.52 is: 46,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,231.84 : 99,391.53 = 31,181.52 : x
  2. Step 2: Convert to fraction form
    66,231.84/99,391.53 = 31,181.52/x
  3. Step 3: Cross multiply
    66,231.84x = 99,391.53 × 31,181.52
  4. Step 4: Simplify right side
    66,231.84x = 3,099,178,980.53
  5. Step 5: Solve for x
    x = 3,099,178,980.53/66,231.84
  6. Step 6: Final answer
    x = 46,792.89

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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.