Home / 69,991.20-105,479.63-63,336.66

Finding the Fourth Proportional to 69,991.20, 105,479.63 and 63,336.66

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Solution

The fourth proportional to 69,991.20, 105,479.63 and 63,336.66 is: 95,450.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,991.20 : 105,479.63 = 63,336.66 : x
  2. Step 2: Convert to fraction form
    69,991.20/105,479.63 = 63,336.66/x
  3. Step 3: Cross multiply
    69,991.20x = 105,479.63 × 63,336.66
  4. Step 4: Simplify right side
    69,991.20x = 6,680,727,145.55
  5. Step 5: Solve for x
    x = 6,680,727,145.55/69,991.20
  6. Step 6: Final answer
    x = 95,450.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.