Home / 78,787.56-118,146.70-29,505

Finding the Fourth Proportional to 78,787.56, 118,146.70 and 29,505

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Solution

The fourth proportional to 78,787.56, 118,146.70 and 29,505 is: 44,244.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,787.56 : 118,146.70 = 29,505 : x
  2. Step 2: Convert to fraction form
    78,787.56/118,146.70 = 29,505/x
  3. Step 3: Cross multiply
    78,787.56x = 118,146.70 × 29,505
  4. Step 4: Simplify right side
    78,787.56x = 3,485,918,383.50
  5. Step 5: Solve for x
    x = 3,485,918,383.50/78,787.56
  6. Step 6: Final answer
    x = 44,244.53

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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.