Home / 89,756.91-123,871.66-49,477.84

Finding the Fourth Proportional to 89,756.91, 123,871.66 and 49,477.84

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Solution

The fourth proportional to 89,756.91, 123,871.66 and 49,477.84 is: 68,283.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,756.91 : 123,871.66 = 49,477.84 : x
  2. Step 2: Convert to fraction form
    89,756.91/123,871.66 = 49,477.84/x
  3. Step 3: Cross multiply
    89,756.91x = 123,871.66 × 49,477.84
  4. Step 4: Simplify right side
    89,756.91x = 6,128,901,740.64
  5. Step 5: Solve for x
    x = 6,128,901,740.64/89,756.91
  6. Step 6: Final answer
    x = 68,283.34

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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.