Home / 80,975.79-111,746.67-46,991.18

Finding the Fourth Proportional to 80,975.79, 111,746.67 and 46,991.18

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Solution

The fourth proportional to 80,975.79, 111,746.67 and 46,991.18 is: 64,847.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,975.79 : 111,746.67 = 46,991.18 : x
  2. Step 2: Convert to fraction form
    80,975.79/111,746.67 = 46,991.18/x
  3. Step 3: Cross multiply
    80,975.79x = 111,746.67 × 46,991.18
  4. Step 4: Simplify right side
    80,975.79x = 5,251,107,884.37
  5. Step 5: Solve for x
    x = 5,251,107,884.37/80,975.79
  6. Step 6: Final answer
    x = 64,847.87

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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.