Home / 77,731.72-116,400.64-48,059.56

Finding the Fourth Proportional to 77,731.72, 116,400.64 and 48,059.56

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Solution

The fourth proportional to 77,731.72, 116,400.64 and 48,059.56 is: 71,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,731.72 : 116,400.64 = 48,059.56 : x
  2. Step 2: Convert to fraction form
    77,731.72/116,400.64 = 48,059.56/x
  3. Step 3: Cross multiply
    77,731.72x = 116,400.64 × 48,059.56
  4. Step 4: Simplify right side
    77,731.72x = 5,594,163,542.12
  5. Step 5: Solve for x
    x = 5,594,163,542.12/77,731.72
  6. Step 6: Final answer
    x = 71,967.58

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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.