Home / 57,237.29-78,904.49-40,189.62

Finding the Fourth Proportional to 57,237.29, 78,904.49 and 40,189.62

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Solution

The fourth proportional to 57,237.29, 78,904.49 and 40,189.62 is: 55,403.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,237.29 : 78,904.49 = 40,189.62 : x
  2. Step 2: Convert to fraction form
    57,237.29/78,904.49 = 40,189.62/x
  3. Step 3: Cross multiply
    57,237.29x = 78,904.49 × 40,189.62
  4. Step 4: Simplify right side
    57,237.29x = 3,171,141,469.39
  5. Step 5: Solve for x
    x = 3,171,141,469.39/57,237.29
  6. Step 6: Final answer
    x = 55,403.42

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1.5x scale

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.