Home / 56,923.29-78,558.75-31,431.96

Finding the Fourth Proportional to 56,923.29, 78,558.75 and 31,431.96

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Solution

The fourth proportional to 56,923.29, 78,558.75 and 31,431.96 is: 43,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,923.29 : 78,558.75 = 31,431.96 : x
  2. Step 2: Convert to fraction form
    56,923.29/78,558.75 = 31,431.96/x
  3. Step 3: Cross multiply
    56,923.29x = 78,558.75 × 31,431.96
  4. Step 4: Simplify right side
    56,923.29x = 2,469,255,487.65
  5. Step 5: Solve for x
    x = 2,469,255,487.65/56,923.29
  6. Step 6: Final answer
    x = 43,378.65

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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.