Home / 80,512.72-111,107.82-44,702.80

Finding the Fourth Proportional to 80,512.72, 111,107.82 and 44,702.80

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Solution

The fourth proportional to 80,512.72, 111,107.82 and 44,702.80 is: 61,690.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,512.72 : 111,107.82 = 44,702.80 : x
  2. Step 2: Convert to fraction form
    80,512.72/111,107.82 = 44,702.80/x
  3. Step 3: Cross multiply
    80,512.72x = 111,107.82 × 44,702.80
  4. Step 4: Simplify right side
    80,512.72x = 4,966,830,655.90
  5. Step 5: Solve for x
    x = 4,966,830,655.90/80,512.72
  6. Step 6: Final answer
    x = 61,690.01

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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.