Home / 56,623.96-78,141.97-31,131.44

Finding the Fourth Proportional to 56,623.96, 78,141.97 and 31,131.44

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Solution

The fourth proportional to 56,623.96, 78,141.97 and 31,131.44 is: 42,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,623.96 : 78,141.97 = 31,131.44 : x
  2. Step 2: Convert to fraction form
    56,623.96/78,141.97 = 31,131.44/x
  3. Step 3: Cross multiply
    56,623.96x = 78,141.97 × 31,131.44
  4. Step 4: Simplify right side
    56,623.96x = 2,432,671,816.66
  5. Step 5: Solve for x
    x = 2,432,671,816.66/56,623.96
  6. Step 6: Final answer
    x = 42,961.88

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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.