Home / 81,619.84-122,175.34-62,851.12

Finding the Fourth Proportional to 81,619.84, 122,175.34 and 62,851.12

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Solution

The fourth proportional to 81,619.84, 122,175.34 and 62,851.12 is: 94,080.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,619.84 : 122,175.34 = 62,851.12 : x
  2. Step 2: Convert to fraction form
    81,619.84/122,175.34 = 62,851.12/x
  3. Step 3: Cross multiply
    81,619.84x = 122,175.34 × 62,851.12
  4. Step 4: Simplify right side
    81,619.84x = 7,678,856,955.38
  5. Step 5: Solve for x
    x = 7,678,856,955.38/81,619.84
  6. Step 6: Final answer
    x = 94,080.76

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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.