Home / 89,746.84-123,856.49-51,518.77

Finding the Fourth Proportional to 89,746.84, 123,856.49 and 51,518.77

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Solution

The fourth proportional to 89,746.84, 123,856.49 and 51,518.77 is: 71,099.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,746.84 : 123,856.49 = 51,518.77 : x
  2. Step 2: Convert to fraction form
    89,746.84/123,856.49 = 51,518.77/x
  3. Step 3: Cross multiply
    89,746.84x = 123,856.49 × 51,518.77
  4. Step 4: Simplify right side
    89,746.84x = 6,380,934,021.32
  5. Step 5: Solve for x
    x = 6,380,934,021.32/89,746.84
  6. Step 6: Final answer
    x = 71,099.26

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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.