Home / 57,027.04-78,690.45-31,529.96

Finding the Fourth Proportional to 57,027.04, 78,690.45 and 31,529.96

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Solution

The fourth proportional to 57,027.04, 78,690.45 and 31,529.96 is: 43,507.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,027.04 : 78,690.45 = 31,529.96 : x
  2. Step 2: Convert to fraction form
    57,027.04/78,690.45 = 31,529.96/x
  3. Step 3: Cross multiply
    57,027.04x = 78,690.45 × 31,529.96
  4. Step 4: Simplify right side
    57,027.04x = 2,481,106,740.88
  5. Step 5: Solve for x
    x = 2,481,106,740.88/57,027.04
  6. Step 6: Final answer
    x = 43,507.55

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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.