Home / 56,821.14-78,414.21-31,667.94

Finding the Fourth Proportional to 56,821.14, 78,414.21 and 31,667.94

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Solution

The fourth proportional to 56,821.14, 78,414.21 and 31,667.94 is: 43,702.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,821.14 : 78,414.21 = 31,667.94 : x
  2. Step 2: Convert to fraction form
    56,821.14/78,414.21 = 31,667.94/x
  3. Step 3: Cross multiply
    56,821.14x = 78,414.21 × 31,667.94
  4. Step 4: Simplify right side
    56,821.14x = 2,483,216,497.43
  5. Step 5: Solve for x
    x = 2,483,216,497.43/56,821.14
  6. Step 6: Final answer
    x = 43,702.34

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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.