Home / 81,582.76-122,176.54-41,496.28

Finding the Fourth Proportional to 81,582.76, 122,176.54 and 41,496.28

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Solution

The fourth proportional to 81,582.76, 122,176.54 and 41,496.28 is: 62,143.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,582.76 : 122,176.54 = 41,496.28 : x
  2. Step 2: Convert to fraction form
    81,582.76/122,176.54 = 41,496.28/x
  3. Step 3: Cross multiply
    81,582.76x = 122,176.54 × 41,496.28
  4. Step 4: Simplify right side
    81,582.76x = 5,069,871,913.27
  5. Step 5: Solve for x
    x = 5,069,871,913.27/81,582.76
  6. Step 6: Final answer
    x = 62,143.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.