Home / 77,311.86-115,896.43-53,630.58

Finding the Fourth Proportional to 77,311.86, 115,896.43 and 53,630.58

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Solution

The fourth proportional to 77,311.86, 115,896.43 and 53,630.58 is: 80,396.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,311.86 : 115,896.43 = 53,630.58 : x
  2. Step 2: Convert to fraction form
    77,311.86/115,896.43 = 53,630.58/x
  3. Step 3: Cross multiply
    77,311.86x = 115,896.43 × 53,630.58
  4. Step 4: Simplify right side
    77,311.86x = 6,215,592,913.43
  5. Step 5: Solve for x
    x = 6,215,592,913.43/77,311.86
  6. Step 6: Final answer
    x = 80,396.37

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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.