Home / 76,432.21-114,814.56-66,467.79

Finding the Fourth Proportional to 76,432.21, 114,814.56 and 66,467.79

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Solution

The fourth proportional to 76,432.21, 114,814.56 and 66,467.79 is: 99,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,432.21 : 114,814.56 = 66,467.79 : x
  2. Step 2: Convert to fraction form
    76,432.21/114,814.56 = 66,467.79/x
  3. Step 3: Cross multiply
    76,432.21x = 114,814.56 × 66,467.79
  4. Step 4: Simplify right side
    76,432.21x = 7,631,470,312.28
  5. Step 5: Solve for x
    x = 7,631,470,312.28/76,432.21
  6. Step 6: Final answer
    x = 99,846.26

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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.