Home / 76,378.48-105,380.73-49,522.12

Finding the Fourth Proportional to 76,378.48, 105,380.73 and 49,522.12

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Solution

The fourth proportional to 76,378.48, 105,380.73 and 49,522.12 is: 68,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,378.48 : 105,380.73 = 49,522.12 : x
  2. Step 2: Convert to fraction form
    76,378.48/105,380.73 = 49,522.12/x
  3. Step 3: Cross multiply
    76,378.48x = 105,380.73 × 49,522.12
  4. Step 4: Simplify right side
    76,378.48x = 5,218,676,893.30
  5. Step 5: Solve for x
    x = 5,218,676,893.30/76,378.48
  6. Step 6: Final answer
    x = 68,326.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.