Home / 57,201.56-78,850.65-40,157.99

Finding the Fourth Proportional to 57,201.56, 78,850.65 and 40,157.99

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Solution

The fourth proportional to 57,201.56, 78,850.65 and 40,157.99 is: 55,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,201.56 : 78,850.65 = 40,157.99 : x
  2. Step 2: Convert to fraction form
    57,201.56/78,850.65 = 40,157.99/x
  3. Step 3: Cross multiply
    57,201.56x = 78,850.65 × 40,157.99
  4. Step 4: Simplify right side
    57,201.56x = 3,166,483,614.19
  5. Step 5: Solve for x
    x = 3,166,483,614.19/57,201.56
  6. Step 6: Final answer
    x = 55,356.60

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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.