Home / 79,052.92-109,132.86-61,107.40

Finding the Fourth Proportional to 79,052.92, 109,132.86 and 61,107.40

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Solution

The fourth proportional to 79,052.92, 109,132.86 and 61,107.40 is: 84,359.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,052.92 : 109,132.86 = 61,107.40 : x
  2. Step 2: Convert to fraction form
    79,052.92/109,132.86 = 61,107.40/x
  3. Step 3: Cross multiply
    79,052.92x = 109,132.86 × 61,107.40
  4. Step 4: Simplify right side
    79,052.92x = 6,668,825,329.16
  5. Step 5: Solve for x
    x = 6,668,825,329.16/79,052.92
  6. Step 6: Final answer
    x = 84,359.00

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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.