Home / 80,963.36-111,729.94-45,155.64

Finding the Fourth Proportional to 80,963.36, 111,729.94 and 45,155.64

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Solution

The fourth proportional to 80,963.36, 111,729.94 and 45,155.64 is: 62,315.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,963.36 : 111,729.94 = 45,155.64 : x
  2. Step 2: Convert to fraction form
    80,963.36/111,729.94 = 45,155.64/x
  3. Step 3: Cross multiply
    80,963.36x = 111,729.94 × 45,155.64
  4. Step 4: Simplify right side
    80,963.36x = 5,045,236,947.86
  5. Step 5: Solve for x
    x = 5,045,236,947.86/80,963.36
  6. Step 6: Final answer
    x = 62,315.06

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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.