Home / 57,201.68-78,850.82-40,158.11

Finding the Fourth Proportional to 57,201.68, 78,850.82 and 40,158.11

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Solution

The fourth proportional to 57,201.68, 78,850.82 and 40,158.11 is: 55,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,201.68 : 78,850.82 = 40,158.11 : x
  2. Step 2: Convert to fraction form
    57,201.68/78,850.82 = 40,158.11/x
  3. Step 3: Cross multiply
    57,201.68x = 78,850.82 × 40,158.11
  4. Step 4: Simplify right side
    57,201.68x = 3,166,500,200.67
  5. Step 5: Solve for x
    x = 3,166,500,200.67/57,201.68
  6. Step 6: Final answer
    x = 55,356.77

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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.