Home / 57,035.88-78,709.26-31,543.56

Finding the Fourth Proportional to 57,035.88, 78,709.26 and 31,543.56

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Solution

The fourth proportional to 57,035.88, 78,709.26 and 31,543.56 is: 43,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,035.88 : 78,709.26 = 31,543.56 : x
  2. Step 2: Convert to fraction form
    57,035.88/78,709.26 = 31,543.56/x
  3. Step 3: Cross multiply
    57,035.88x = 78,709.26 × 31,543.56
  4. Step 4: Simplify right side
    57,035.88x = 2,482,770,265.37
  5. Step 5: Solve for x
    x = 2,482,770,265.37/57,035.88
  6. Step 6: Final answer
    x = 43,529.97

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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.