Home / 56,961.72-78,606.80-31,469.73

Finding the Fourth Proportional to 56,961.72, 78,606.80 and 31,469.73

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Solution

The fourth proportional to 56,961.72, 78,606.80 and 31,469.73 is: 43,428.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,961.72 : 78,606.80 = 31,469.73 : x
  2. Step 2: Convert to fraction form
    56,961.72/78,606.80 = 31,469.73/x
  3. Step 3: Cross multiply
    56,961.72x = 78,606.80 × 31,469.73
  4. Step 4: Simplify right side
    56,961.72x = 2,473,734,526.47
  5. Step 5: Solve for x
    x = 2,473,734,526.47/56,961.72
  6. Step 6: Final answer
    x = 43,428.02

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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.