Home / 79,117.77-109,182.64-43,310.04

Finding the Fourth Proportional to 79,117.77, 109,182.64 and 43,310.04

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Solution

The fourth proportional to 79,117.77, 109,182.64 and 43,310.04 is: 59,767.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.77 : 109,182.64 = 43,310.04 : x
  2. Step 2: Convert to fraction form
    79,117.77/109,182.64 = 43,310.04/x
  3. Step 3: Cross multiply
    79,117.77x = 109,182.64 × 43,310.04
  4. Step 4: Simplify right side
    79,117.77x = 4,728,704,670.39
  5. Step 5: Solve for x
    x = 4,728,704,670.39/79,117.77
  6. Step 6: Final answer
    x = 59,767.92

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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.