Home / 83,933.80-115,777.38-66,000.04

Finding the Fourth Proportional to 83,933.80, 115,777.38 and 66,000.04

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Solution

The fourth proportional to 83,933.80, 115,777.38 and 66,000.04 is: 91,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,933.80 : 115,777.38 = 66,000.04 : x
  2. Step 2: Convert to fraction form
    83,933.80/115,777.38 = 66,000.04/x
  3. Step 3: Cross multiply
    83,933.80x = 115,777.38 × 66,000.04
  4. Step 4: Simplify right side
    83,933.80x = 7,641,311,711.10
  5. Step 5: Solve for x
    x = 7,641,311,711.10/83,933.80
  6. Step 6: Final answer
    x = 91,039.74

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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.