Home / 80,683.13-111,324.35-46,690.76

Finding the Fourth Proportional to 80,683.13, 111,324.35 and 46,690.76

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Solution

The fourth proportional to 80,683.13, 111,324.35 and 46,690.76 is: 64,422.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,683.13 : 111,324.35 = 46,690.76 : x
  2. Step 2: Convert to fraction form
    80,683.13/111,324.35 = 46,690.76/x
  3. Step 3: Cross multiply
    80,683.13x = 111,324.35 × 46,690.76
  4. Step 4: Simplify right side
    80,683.13x = 5,197,818,274.55
  5. Step 5: Solve for x
    x = 5,197,818,274.55/80,683.13
  6. Step 6: Final answer
    x = 64,422.62

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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.