Home / 76,838.64-115,253.88-23,530.60

Finding the Fourth Proportional to 76,838.64, 115,253.88 and 23,530.60

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Solution

The fourth proportional to 76,838.64, 115,253.88 and 23,530.60 is: 35,294.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,838.64 : 115,253.88 = 23,530.60 : x
  2. Step 2: Convert to fraction form
    76,838.64/115,253.88 = 23,530.60/x
  3. Step 3: Cross multiply
    76,838.64x = 115,253.88 × 23,530.60
  4. Step 4: Simplify right side
    76,838.64x = 2,711,992,948.73
  5. Step 5: Solve for x
    x = 2,711,992,948.73/76,838.64
  6. Step 6: Final answer
    x = 35,294.65

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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.