Home / 79,117.74-109,182.60-43,310.01

Finding the Fourth Proportional to 79,117.74, 109,182.60 and 43,310.01

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Solution

The fourth proportional to 79,117.74, 109,182.60 and 43,310.01 is: 59,767.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.74 : 109,182.60 = 43,310.01 : x
  2. Step 2: Convert to fraction form
    79,117.74/109,182.60 = 43,310.01/x
  3. Step 3: Cross multiply
    79,117.74x = 109,182.60 × 43,310.01
  4. Step 4: Simplify right side
    79,117.74x = 4,728,699,497.83
  5. Step 5: Solve for x
    x = 4,728,699,497.83/79,117.74
  6. Step 6: Final answer
    x = 59,767.88

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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.