Home / 87,629.04-120,921.26-53,623.42

Finding the Fourth Proportional to 87,629.04, 120,921.26 and 53,623.42

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Solution

The fourth proportional to 87,629.04, 120,921.26 and 53,623.42 is: 73,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.04 : 120,921.26 = 53,623.42 : x
  2. Step 2: Convert to fraction form
    87,629.04/120,921.26 = 53,623.42/x
  3. Step 3: Cross multiply
    87,629.04x = 120,921.26 × 53,623.42
  4. Step 4: Simplify right side
    87,629.04x = 6,484,210,941.49
  5. Step 5: Solve for x
    x = 6,484,210,941.49/87,629.04
  6. Step 6: Final answer
    x = 73,996.14

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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.