Home / 80,621.20-111,258.53-46,637.38

Finding the Fourth Proportional to 80,621.20, 111,258.53 and 46,637.38

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Solution

The fourth proportional to 80,621.20, 111,258.53 and 46,637.38 is: 64,360.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,621.20 : 111,258.53 = 46,637.38 : x
  2. Step 2: Convert to fraction form
    80,621.20/111,258.53 = 46,637.38/x
  3. Step 3: Cross multiply
    80,621.20x = 111,258.53 × 46,637.38
  4. Step 4: Simplify right side
    80,621.20x = 5,188,806,341.85
  5. Step 5: Solve for x
    x = 5,188,806,341.85/80,621.20
  6. Step 6: Final answer
    x = 64,360.32

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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.