Home / 57,025.72-78,692.07-31,530.55

Finding the Fourth Proportional to 57,025.72, 78,692.07 and 31,530.55

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Solution

The fourth proportional to 57,025.72, 78,692.07 and 31,530.55 is: 43,510.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,025.72 : 78,692.07 = 31,530.55 : x
  2. Step 2: Convert to fraction form
    57,025.72/78,692.07 = 31,530.55/x
  3. Step 3: Cross multiply
    57,025.72x = 78,692.07 × 31,530.55
  4. Step 4: Simplify right side
    57,025.72x = 2,481,204,247.74
  5. Step 5: Solve for x
    x = 2,481,204,247.74/57,025.72
  6. Step 6: Final answer
    x = 43,510.27

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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.