Home / 81,168.21-112,011.87-45,358.22

Finding the Fourth Proportional to 81,168.21, 112,011.87 and 45,358.22

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Solution

The fourth proportional to 81,168.21, 112,011.87 and 45,358.22 is: 62,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,168.21 : 112,011.87 = 45,358.22 : x
  2. Step 2: Convert to fraction form
    81,168.21/112,011.87 = 45,358.22/x
  3. Step 3: Cross multiply
    81,168.21x = 112,011.87 × 45,358.22
  4. Step 4: Simplify right side
    81,168.21x = 5,080,659,042.07
  5. Step 5: Solve for x
    x = 5,080,659,042.07/81,168.21
  6. Step 6: Final answer
    x = 62,594.20

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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.