Home / 79,276.17-109,395.72-43,458.78

Finding the Fourth Proportional to 79,276.17, 109,395.72 and 43,458.78

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Solution

The fourth proportional to 79,276.17, 109,395.72 and 43,458.78 is: 59,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,276.17 : 109,395.72 = 43,458.78 : x
  2. Step 2: Convert to fraction form
    79,276.17/109,395.72 = 43,458.78/x
  3. Step 3: Cross multiply
    79,276.17x = 109,395.72 × 43,458.78
  4. Step 4: Simplify right side
    79,276.17x = 4,754,204,528.42
  5. Step 5: Solve for x
    x = 4,754,204,528.42/79,276.17
  6. Step 6: Final answer
    x = 59,970.16

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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.