Home / 57,191.87-78,927.99-31,697.75

Finding the Fourth Proportional to 57,191.87, 78,927.99 and 31,697.75

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Solution

The fourth proportional to 57,191.87, 78,927.99 and 31,697.75 is: 43,744.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,191.87 : 78,927.99 = 31,697.75 : x
  2. Step 2: Convert to fraction form
    57,191.87/78,927.99 = 31,697.75/x
  3. Step 3: Cross multiply
    57,191.87x = 78,927.99 × 31,697.75
  4. Step 4: Simplify right side
    57,191.87x = 2,501,839,695.02
  5. Step 5: Solve for x
    x = 2,501,839,695.02/57,191.87
  6. Step 6: Final answer
    x = 43,744.67

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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.