Home / 57,741.18-86,638.50-31,414.56

Finding the Fourth Proportional to 57,741.18, 86,638.50 and 31,414.56

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Solution

The fourth proportional to 57,741.18, 86,638.50 and 31,414.56 is: 47,136.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,741.18 : 86,638.50 = 31,414.56 : x
  2. Step 2: Convert to fraction form
    57,741.18/86,638.50 = 31,414.56/x
  3. Step 3: Cross multiply
    57,741.18x = 86,638.50 × 31,414.56
  4. Step 4: Simplify right side
    57,741.18x = 2,721,710,356.56
  5. Step 5: Solve for x
    x = 2,721,710,356.56/57,741.18
  6. Step 6: Final answer
    x = 47,136.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.