Home / 80,685.49-111,338.18-46,687.21

Finding the Fourth Proportional to 80,685.49, 111,338.18 and 46,687.21

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Solution

The fourth proportional to 80,685.49, 111,338.18 and 46,687.21 is: 64,423.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,685.49 : 111,338.18 = 46,687.21 : x
  2. Step 2: Convert to fraction form
    80,685.49/111,338.18 = 46,687.21/x
  3. Step 3: Cross multiply
    80,685.49x = 111,338.18 × 46,687.21
  4. Step 4: Simplify right side
    80,685.49x = 5,198,068,829.05
  5. Step 5: Solve for x
    x = 5,198,068,829.05/80,685.49
  6. Step 6: Final answer
    x = 64,423.84

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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.