Home / 67,981.12-93,825.19-56,632.64

Finding the Fourth Proportional to 67,981.12, 93,825.19 and 56,632.64

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Solution

The fourth proportional to 67,981.12, 93,825.19 and 56,632.64 is: 78,162.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,981.12 : 93,825.19 = 56,632.64 : x
  2. Step 2: Convert to fraction form
    67,981.12/93,825.19 = 56,632.64/x
  3. Step 3: Cross multiply
    67,981.12x = 93,825.19 × 56,632.64
  4. Step 4: Simplify right side
    67,981.12x = 5,313,568,282.96
  5. Step 5: Solve for x
    x = 5,313,568,282.96/67,981.12
  6. Step 6: Final answer
    x = 78,162.41

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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.