Home / 80,782.28-111,485.60-46,799.92

Finding the Fourth Proportional to 80,782.28, 111,485.60 and 46,799.92

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Solution

The fourth proportional to 80,782.28, 111,485.60 and 46,799.92 is: 64,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,782.28 : 111,485.60 = 46,799.92 : x
  2. Step 2: Convert to fraction form
    80,782.28/111,485.60 = 46,799.92/x
  3. Step 3: Cross multiply
    80,782.28x = 111,485.60 × 46,799.92
  4. Step 4: Simplify right side
    80,782.28x = 5,217,517,161.15
  5. Step 5: Solve for x
    x = 5,217,517,161.15/80,782.28
  6. Step 6: Final answer
    x = 64,587.40

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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.