Home / 64,579.56-89,083.32-40,665.12

Finding the Fourth Proportional to 64,579.56, 89,083.32 and 40,665.12

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Solution

The fourth proportional to 64,579.56, 89,083.32 and 40,665.12 is: 56,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,579.56 : 89,083.32 = 40,665.12 : x
  2. Step 2: Convert to fraction form
    64,579.56/89,083.32 = 40,665.12/x
  3. Step 3: Cross multiply
    64,579.56x = 89,083.32 × 40,665.12
  4. Step 4: Simplify right side
    64,579.56x = 3,622,583,897.80
  5. Step 5: Solve for x
    x = 3,622,583,897.80/64,579.56
  6. Step 6: Final answer
    x = 56,094.90

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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.