Home / 79,272.45-109,391.83-45,274.28

Finding the Fourth Proportional to 79,272.45, 109,391.83 and 45,274.28

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Solution

The fourth proportional to 79,272.45, 109,391.83 and 45,274.28 is: 62,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,272.45 : 109,391.83 = 45,274.28 : x
  2. Step 2: Convert to fraction form
    79,272.45/109,391.83 = 45,274.28/x
  3. Step 3: Cross multiply
    79,272.45x = 109,391.83 × 45,274.28
  4. Step 4: Simplify right side
    79,272.45x = 4,952,635,680.99
  5. Step 5: Solve for x
    x = 4,952,635,680.99/79,272.45
  6. Step 6: Final answer
    x = 62,476.13

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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.