Home / 79,564.82-119,346.41-20,399.58

Finding the Fourth Proportional to 79,564.82, 119,346.41 and 20,399.58

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Solution

The fourth proportional to 79,564.82, 119,346.41 and 20,399.58 is: 30,599.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,564.82 : 119,346.41 = 20,399.58 : x
  2. Step 2: Convert to fraction form
    79,564.82/119,346.41 = 20,399.58/x
  3. Step 3: Cross multiply
    79,564.82x = 119,346.41 × 20,399.58
  4. Step 4: Simplify right side
    79,564.82x = 2,434,616,689.51
  5. Step 5: Solve for x
    x = 2,434,616,689.51/79,564.82
  6. Step 6: Final answer
    x = 30,599.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.