Home / 79,570.17-109,805.40-43,760.28

Finding the Fourth Proportional to 79,570.17, 109,805.40 and 43,760.28

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Solution

The fourth proportional to 79,570.17, 109,805.40 and 43,760.28 is: 60,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,570.17 : 109,805.40 = 43,760.28 : x
  2. Step 2: Convert to fraction form
    79,570.17/109,805.40 = 43,760.28/x
  3. Step 3: Cross multiply
    79,570.17x = 109,805.40 × 43,760.28
  4. Step 4: Simplify right side
    79,570.17x = 4,805,115,049.51
  5. Step 5: Solve for x
    x = 4,805,115,049.51/79,570.17
  6. Step 6: Final answer
    x = 60,388.40

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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.