Home / 57,076.50-78,765.66-31,926

Finding the Fourth Proportional to 57,076.50, 78,765.66 and 31,926

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Solution

The fourth proportional to 57,076.50, 78,765.66 and 31,926 is: 44,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,076.50 : 78,765.66 = 31,926 : x
  2. Step 2: Convert to fraction form
    57,076.50/78,765.66 = 31,926/x
  3. Step 3: Cross multiply
    57,076.50x = 78,765.66 × 31,926
  4. Step 4: Simplify right side
    57,076.50x = 2,514,672,461.16
  5. Step 5: Solve for x
    x = 2,514,672,461.16/57,076.50
  6. Step 6: Final answer
    x = 44,057.93

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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.