Home / 80,512.91-111,111.29-44,702.92

Finding the Fourth Proportional to 80,512.91, 111,111.29 and 44,702.92

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Solution

The fourth proportional to 80,512.91, 111,111.29 and 44,702.92 is: 61,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,512.91 : 111,111.29 = 44,702.92 : x
  2. Step 2: Convert to fraction form
    80,512.91/111,111.29 = 44,702.92/x
  3. Step 3: Cross multiply
    80,512.91x = 111,111.29 × 44,702.92
  4. Step 4: Simplify right side
    80,512.91x = 4,966,999,107.97
  5. Step 5: Solve for x
    x = 4,966,999,107.97/80,512.91
  6. Step 6: Final answer
    x = 61,691.96

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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.