Home / 81,168.03-112,011.68-45,358.03

Finding the Fourth Proportional to 81,168.03, 112,011.68 and 45,358.03

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Solution

The fourth proportional to 81,168.03, 112,011.68 and 45,358.03 is: 62,593.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,168.03 : 112,011.68 = 45,358.03 : x
  2. Step 2: Convert to fraction form
    81,168.03/112,011.68 = 45,358.03/x
  3. Step 3: Cross multiply
    81,168.03x = 112,011.68 × 45,358.03
  4. Step 4: Simplify right side
    81,168.03x = 5,080,629,605.22
  5. Step 5: Solve for x
    x = 5,080,629,605.22/81,168.03
  6. Step 6: Final answer
    x = 62,593.98

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1.5x scale

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.