Home / 57,148.08-85,805.34-42,201.33

Finding the Fourth Proportional to 57,148.08, 85,805.34 and 42,201.33

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Solution

The fourth proportional to 57,148.08, 85,805.34 and 42,201.33 is: 63,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,148.08 : 85,805.34 = 42,201.33 : x
  2. Step 2: Convert to fraction form
    57,148.08/85,805.34 = 42,201.33/x
  3. Step 3: Cross multiply
    57,148.08x = 85,805.34 × 42,201.33
  4. Step 4: Simplify right side
    57,148.08x = 3,621,099,469.10
  5. Step 5: Solve for x
    x = 3,621,099,469.10/57,148.08
  6. Step 6: Final answer
    x = 63,363.45

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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.