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Finding the Fourth Proportional to 80,850.64, 111,573.95 and 45,040.74

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Solution

The fourth proportional to 80,850.64, 111,573.95 and 45,040.74 is: 62,156.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,850.64 : 111,573.95 = 45,040.74 : x
  2. Step 2: Convert to fraction form
    80,850.64/111,573.95 = 45,040.74/x
  3. Step 3: Cross multiply
    80,850.64x = 111,573.95 × 45,040.74
  4. Step 4: Simplify right side
    80,850.64x = 5,025,373,047.52
  5. Step 5: Solve for x
    x = 5,025,373,047.52/80,850.64
  6. Step 6: Final answer
    x = 62,156.26

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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.