Home / 82,342.42-113,619.63-47,894.78

Finding the Fourth Proportional to 82,342.42, 113,619.63 and 47,894.78

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Solution

The fourth proportional to 82,342.42, 113,619.63 and 47,894.78 is: 66,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,342.42 : 113,619.63 = 47,894.78 : x
  2. Step 2: Convert to fraction form
    82,342.42/113,619.63 = 47,894.78/x
  3. Step 3: Cross multiply
    82,342.42x = 113,619.63 × 47,894.78
  4. Step 4: Simplify right side
    82,342.42x = 5,441,787,182.53
  5. Step 5: Solve for x
    x = 5,441,787,182.53/82,342.42
  6. Step 6: Final answer
    x = 66,087.29

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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.