Home / 58,579.47-80,839.22-31,721.90

Finding the Fourth Proportional to 58,579.47, 80,839.22 and 31,721.90

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Solution

The fourth proportional to 58,579.47, 80,839.22 and 31,721.90 is: 43,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,579.47 : 80,839.22 = 31,721.90 : x
  2. Step 2: Convert to fraction form
    58,579.47/80,839.22 = 31,721.90/x
  3. Step 3: Cross multiply
    58,579.47x = 80,839.22 × 31,721.90
  4. Step 4: Simplify right side
    58,579.47x = 2,564,373,090.11
  5. Step 5: Solve for x
    x = 2,564,373,090.11/58,579.47
  6. Step 6: Final answer
    x = 43,775.97

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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.