Home / 57,119.92-78,850.20-42,976.24

Finding the Fourth Proportional to 57,119.92, 78,850.20 and 42,976.24

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Solution

The fourth proportional to 57,119.92, 78,850.20 and 42,976.24 is: 59,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119.92 : 78,850.20 = 42,976.24 : x
  2. Step 2: Convert to fraction form
    57,119.92/78,850.20 = 42,976.24/x
  3. Step 3: Cross multiply
    57,119.92x = 78,850.20 × 42,976.24
  4. Step 4: Simplify right side
    57,119.92x = 3,388,685,119.25
  5. Step 5: Solve for x
    x = 3,388,685,119.25/57,119.92
  6. Step 6: Final answer
    x = 59,325.80

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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.