Home / 80,548.41-111,082.65-54,745.56

Finding the Fourth Proportional to 80,548.41, 111,082.65 and 54,745.56

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Solution

The fourth proportional to 80,548.41, 111,082.65 and 54,745.56 is: 75,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,548.41 : 111,082.65 = 54,745.56 : x
  2. Step 2: Convert to fraction form
    80,548.41/111,082.65 = 54,745.56/x
  3. Step 3: Cross multiply
    80,548.41x = 111,082.65 × 54,745.56
  4. Step 4: Simplify right side
    80,548.41x = 6,081,281,880.53
  5. Step 5: Solve for x
    x = 6,081,281,880.53/80,548.41
  6. Step 6: Final answer
    x = 75,498.47

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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.