Home / 76,458.79-114,725.76-34,368.61

Finding the Fourth Proportional to 76,458.79, 114,725.76 and 34,368.61

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Solution

The fourth proportional to 76,458.79, 114,725.76 and 34,368.61 is: 51,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,458.79 : 114,725.76 = 34,368.61 : x
  2. Step 2: Convert to fraction form
    76,458.79/114,725.76 = 34,368.61/x
  3. Step 3: Cross multiply
    76,458.79x = 114,725.76 × 34,368.61
  4. Step 4: Simplify right side
    76,458.79x = 3,942,964,902.39
  5. Step 5: Solve for x
    x = 3,942,964,902.39/76,458.79
  6. Step 6: Final answer
    x = 51,569.81

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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.