Home / 79,669.28-109,939.60-43,862.40

Finding the Fourth Proportional to 79,669.28, 109,939.60 and 43,862.40

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Solution

The fourth proportional to 79,669.28, 109,939.60 and 43,862.40 is: 60,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,669.28 : 109,939.60 = 43,862.40 : x
  2. Step 2: Convert to fraction form
    79,669.28/109,939.60 = 43,862.40/x
  3. Step 3: Cross multiply
    79,669.28x = 109,939.60 × 43,862.40
  4. Step 4: Simplify right side
    79,669.28x = 4,822,214,711.04
  5. Step 5: Solve for x
    x = 4,822,214,711.04/79,669.28
  6. Step 6: Final answer
    x = 60,527.91

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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.