Home / 76,272.66-114,409.67-31,318.74

Finding the Fourth Proportional to 76,272.66, 114,409.67 and 31,318.74

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Solution

The fourth proportional to 76,272.66, 114,409.67 and 31,318.74 is: 46,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,272.66 : 114,409.67 = 31,318.74 : x
  2. Step 2: Convert to fraction form
    76,272.66/114,409.67 = 31,318.74/x
  3. Step 3: Cross multiply
    76,272.66x = 114,409.67 × 31,318.74
  4. Step 4: Simplify right side
    76,272.66x = 3,583,166,551.62
  5. Step 5: Solve for x
    x = 3,583,166,551.62/76,272.66
  6. Step 6: Final answer
    x = 46,978.39

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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.