Home / 57,500.82-86,243.94-42,731.28

Finding the Fourth Proportional to 57,500.82, 86,243.94 and 42,731.28

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Solution

The fourth proportional to 57,500.82, 86,243.94 and 42,731.28 is: 64,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,500.82 : 86,243.94 = 42,731.28 : x
  2. Step 2: Convert to fraction form
    57,500.82/86,243.94 = 42,731.28/x
  3. Step 3: Cross multiply
    57,500.82x = 86,243.94 × 42,731.28
  4. Step 4: Simplify right side
    57,500.82x = 3,685,313,948.44
  5. Step 5: Solve for x
    x = 3,685,313,948.44/57,500.82
  6. Step 6: Final answer
    x = 64,091.50

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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.