Home / 76,451.04-105,465.65-49,601.97

Finding the Fourth Proportional to 76,451.04, 105,465.65 and 49,601.97

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Solution

The fourth proportional to 76,451.04, 105,465.65 and 49,601.97 is: 68,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,451.04 : 105,465.65 = 49,601.97 : x
  2. Step 2: Convert to fraction form
    76,451.04/105,465.65 = 49,601.97/x
  3. Step 3: Cross multiply
    76,451.04x = 105,465.65 × 49,601.97
  4. Step 4: Simplify right side
    76,451.04x = 5,231,303,759.32
  5. Step 5: Solve for x
    x = 5,231,303,759.32/76,451.04
  6. Step 6: Final answer
    x = 68,426.85

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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.