Home / 56,783.72-78,363.09-31,633.22

Finding the Fourth Proportional to 56,783.72, 78,363.09 and 31,633.22

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Solution

The fourth proportional to 56,783.72, 78,363.09 and 31,633.22 is: 43,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,783.72 : 78,363.09 = 31,633.22 : x
  2. Step 2: Convert to fraction form
    56,783.72/78,363.09 = 31,633.22/x
  3. Step 3: Cross multiply
    56,783.72x = 78,363.09 × 31,633.22
  4. Step 4: Simplify right side
    56,783.72x = 2,478,876,474.03
  5. Step 5: Solve for x
    x = 2,478,876,474.03/56,783.72
  6. Step 6: Final answer
    x = 43,654.71

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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.