Home / 70,584.06-105,811.11-30,577.91

Finding the Fourth Proportional to 70,584.06, 105,811.11 and 30,577.91

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Solution

The fourth proportional to 70,584.06, 105,811.11 and 30,577.91 is: 45,838.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,584.06 : 105,811.11 = 30,577.91 : x
  2. Step 2: Convert to fraction form
    70,584.06/105,811.11 = 30,577.91/x
  3. Step 3: Cross multiply
    70,584.06x = 105,811.11 × 30,577.91
  4. Step 4: Simplify right side
    70,584.06x = 3,235,482,069.52
  5. Step 5: Solve for x
    x = 3,235,482,069.52/70,584.06
  6. Step 6: Final answer
    x = 45,838.71

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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.