Home / 78,046.26-116,967.32-31,331.94

Finding the Fourth Proportional to 78,046.26, 116,967.32 and 31,331.94

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Solution

The fourth proportional to 78,046.26, 116,967.32 and 31,331.94 is: 46,956.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,046.26 : 116,967.32 = 31,331.94 : x
  2. Step 2: Convert to fraction form
    78,046.26/116,967.32 = 31,331.94/x
  3. Step 3: Cross multiply
    78,046.26x = 116,967.32 × 31,331.94
  4. Step 4: Simplify right side
    78,046.26x = 3,664,813,052.20
  5. Step 5: Solve for x
    x = 3,664,813,052.20/78,046.26
  6. Step 6: Final answer
    x = 46,956.93

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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.