Home / 58,628.47-87,921.15-20,149.04

Finding the Fourth Proportional to 58,628.47, 87,921.15 and 20,149.04

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Solution

The fourth proportional to 58,628.47, 87,921.15 and 20,149.04 is: 30,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,628.47 : 87,921.15 = 20,149.04 : x
  2. Step 2: Convert to fraction form
    58,628.47/87,921.15 = 20,149.04/x
  3. Step 3: Cross multiply
    58,628.47x = 87,921.15 × 20,149.04
  4. Step 4: Simplify right side
    58,628.47x = 1,771,526,227.85
  5. Step 5: Solve for x
    x = 1,771,526,227.85/58,628.47
  6. Step 6: Final answer
    x = 30,216.15

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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.