Home / 76,690.97-105,817.27-48,380.25

Finding the Fourth Proportional to 76,690.97, 105,817.27 and 48,380.25

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Solution

The fourth proportional to 76,690.97, 105,817.27 and 48,380.25 is: 66,754.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,690.97 : 105,817.27 = 48,380.25 : x
  2. Step 2: Convert to fraction form
    76,690.97/105,817.27 = 48,380.25/x
  3. Step 3: Cross multiply
    76,690.97x = 105,817.27 × 48,380.25
  4. Step 4: Simplify right side
    76,690.97x = 5,119,465,976.92
  5. Step 5: Solve for x
    x = 5,119,465,976.92/76,690.97
  6. Step 6: Final answer
    x = 66,754.48

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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.