Home / 76,205.16-114,289.29-31,807.86

Finding the Fourth Proportional to 76,205.16, 114,289.29 and 31,807.86

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Solution

The fourth proportional to 76,205.16, 114,289.29 and 31,807.86 is: 47,704.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,205.16 : 114,289.29 = 31,807.86 : x
  2. Step 2: Convert to fraction form
    76,205.16/114,289.29 = 31,807.86/x
  3. Step 3: Cross multiply
    76,205.16x = 114,289.29 × 31,807.86
  4. Step 4: Simplify right side
    76,205.16x = 3,635,297,735.82
  5. Step 5: Solve for x
    x = 3,635,297,735.82/76,205.16
  6. Step 6: Final answer
    x = 47,704.09

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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.