Home / 57,360.89-79,135.92-42,289.38

Finding the Fourth Proportional to 57,360.89, 79,135.92 and 42,289.38

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Solution

The fourth proportional to 57,360.89, 79,135.92 and 42,289.38 is: 58,343.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,360.89 : 79,135.92 = 42,289.38 : x
  2. Step 2: Convert to fraction form
    57,360.89/79,135.92 = 42,289.38/x
  3. Step 3: Cross multiply
    57,360.89x = 79,135.92 × 42,289.38
  4. Step 4: Simplify right side
    57,360.89x = 3,346,608,992.53
  5. Step 5: Solve for x
    x = 3,346,608,992.53/57,360.89
  6. Step 6: Final answer
    x = 58,343.04

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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.