Home / 78,568.59-117,827.37-34,182.21

Finding the Fourth Proportional to 78,568.59, 117,827.37 and 34,182.21

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Solution

The fourth proportional to 78,568.59, 117,827.37 and 34,182.21 is: 51,262.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,568.59 : 117,827.37 = 34,182.21 : x
  2. Step 2: Convert to fraction form
    78,568.59/117,827.37 = 34,182.21/x
  3. Step 3: Cross multiply
    78,568.59x = 117,827.37 × 34,182.21
  4. Step 4: Simplify right side
    78,568.59x = 4,027,599,905.09
  5. Step 5: Solve for x
    x = 4,027,599,905.09/78,568.59
  6. Step 6: Final answer
    x = 51,262.21

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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.