Home / 83,628.60-115,573.38-68,497.30

Finding the Fourth Proportional to 83,628.60, 115,573.38 and 68,497.30

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Solution

The fourth proportional to 83,628.60, 115,573.38 and 68,497.30 is: 94,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,628.60 : 115,573.38 = 68,497.30 : x
  2. Step 2: Convert to fraction form
    83,628.60/115,573.38 = 68,497.30/x
  3. Step 3: Cross multiply
    83,628.60x = 115,573.38 × 68,497.30
  4. Step 4: Simplify right side
    83,628.60x = 7,916,464,104.67
  5. Step 5: Solve for x
    x = 7,916,464,104.67/83,628.60
  6. Step 6: Final answer
    x = 94,662.16

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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.