Home / 78,827.96-118,351.26-49,361.72

Finding the Fourth Proportional to 78,827.96, 118,351.26 and 49,361.72

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Solution

The fourth proportional to 78,827.96, 118,351.26 and 49,361.72 is: 74,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,827.96 : 118,351.26 = 49,361.72 : x
  2. Step 2: Convert to fraction form
    78,827.96/118,351.26 = 49,361.72/x
  3. Step 3: Cross multiply
    78,827.96x = 118,351.26 × 49,361.72
  4. Step 4: Simplify right side
    78,827.96x = 5,842,021,757.77
  5. Step 5: Solve for x
    x = 5,842,021,757.77/78,827.96
  6. Step 6: Final answer
    x = 74,111.04

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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.