Home / 56,571.56-78,064.99-31,072.96

Finding the Fourth Proportional to 56,571.56, 78,064.99 and 31,072.96

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Solution

The fourth proportional to 56,571.56, 78,064.99 and 31,072.96 is: 42,878.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,571.56 : 78,064.99 = 31,072.96 : x
  2. Step 2: Convert to fraction form
    56,571.56/78,064.99 = 31,072.96/x
  3. Step 3: Cross multiply
    56,571.56x = 78,064.99 × 31,072.96
  4. Step 4: Simplify right side
    56,571.56x = 2,425,710,311.67
  5. Step 5: Solve for x
    x = 2,425,710,311.67/56,571.56
  6. Step 6: Final answer
    x = 42,878.62

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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.