Home / 57,056.87-78,711.96-36,920.26

Finding the Fourth Proportional to 57,056.87, 78,711.96 and 36,920.26

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Solution

The fourth proportional to 57,056.87, 78,711.96 and 36,920.26 is: 50,932.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,056.87 : 78,711.96 = 36,920.26 : x
  2. Step 2: Convert to fraction form
    57,056.87/78,711.96 = 36,920.26/x
  3. Step 3: Cross multiply
    57,056.87x = 78,711.96 × 36,920.26
  4. Step 4: Simplify right side
    57,056.87x = 2,906,065,762.30
  5. Step 5: Solve for x
    x = 2,906,065,762.30/57,056.87
  6. Step 6: Final answer
    x = 50,932.79

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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.