Home / 80,511.60-111,107.28-44,703.96

Finding the Fourth Proportional to 80,511.60, 111,107.28 and 44,703.96

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Solution

The fourth proportional to 80,511.60, 111,107.28 and 44,703.96 is: 61,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,511.60 : 111,107.28 = 44,703.96 : x
  2. Step 2: Convert to fraction form
    80,511.60/111,107.28 = 44,703.96/x
  3. Step 3: Cross multiply
    80,511.60x = 111,107.28 × 44,703.96
  4. Step 4: Simplify right side
    80,511.60x = 4,966,935,400.83
  5. Step 5: Solve for x
    x = 4,966,935,400.83/80,511.60
  6. Step 6: Final answer
    x = 61,692.17

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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.