Home / 76,455.09-114,662.59-34,311.60

Finding the Fourth Proportional to 76,455.09, 114,662.59 and 34,311.60

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Solution

The fourth proportional to 76,455.09, 114,662.59 and 34,311.60 is: 51,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,455.09 : 114,662.59 = 34,311.60 : x
  2. Step 2: Convert to fraction form
    76,455.09/114,662.59 = 34,311.60/x
  3. Step 3: Cross multiply
    76,455.09x = 114,662.59 × 34,311.60
  4. Step 4: Simplify right side
    76,455.09x = 3,934,256,837.27
  5. Step 5: Solve for x
    x = 3,934,256,837.27/76,455.09
  6. Step 6: Final answer
    x = 51,458.40

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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.