Home / 79,579.11-109,735.77-59,403.63

Finding the Fourth Proportional to 79,579.11, 109,735.77 and 59,403.63

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Solution

The fourth proportional to 79,579.11, 109,735.77 and 59,403.63 is: 81,914.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,579.11 : 109,735.77 = 59,403.63 : x
  2. Step 2: Convert to fraction form
    79,579.11/109,735.77 = 59,403.63/x
  3. Step 3: Cross multiply
    79,579.11x = 109,735.77 × 59,403.63
  4. Step 4: Simplify right side
    79,579.11x = 6,518,703,078.85
  5. Step 5: Solve for x
    x = 6,518,703,078.85/79,579.11
  6. Step 6: Final answer
    x = 81,914.75

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1.5x scale

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.