Home / 78,638.50-117,842.73-48,966.04

Finding the Fourth Proportional to 78,638.50, 117,842.73 and 48,966.04

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Solution

The fourth proportional to 78,638.50, 117,842.73 and 48,966.04 is: 73,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,638.50 : 117,842.73 = 48,966.04 : x
  2. Step 2: Convert to fraction form
    78,638.50/117,842.73 = 48,966.04/x
  3. Step 3: Cross multiply
    78,638.50x = 117,842.73 × 48,966.04
  4. Step 4: Simplify right side
    78,638.50x = 5,770,291,830.89
  5. Step 5: Solve for x
    x = 5,770,291,830.89/78,638.50
  6. Step 6: Final answer
    x = 73,377.44

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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.