Home / 76,211.12-105,188.84-50,718.56

Finding the Fourth Proportional to 76,211.12, 105,188.84 and 50,718.56

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Solution

The fourth proportional to 76,211.12, 105,188.84 and 50,718.56 is: 70,003.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,211.12 : 105,188.84 = 50,718.56 : x
  2. Step 2: Convert to fraction form
    76,211.12/105,188.84 = 50,718.56/x
  3. Step 3: Cross multiply
    76,211.12x = 105,188.84 × 50,718.56
  4. Step 4: Simplify right side
    76,211.12x = 5,335,025,903.53
  5. Step 5: Solve for x
    x = 5,335,025,903.53/76,211.12
  6. Step 6: Final answer
    x = 70,003.25

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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.