Home / 55,135.26-76,123.08-49,156.56

Finding the Fourth Proportional to 55,135.26, 76,123.08 and 49,156.56

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Solution

The fourth proportional to 55,135.26, 76,123.08 and 49,156.56 is: 67,868.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,135.26 : 76,123.08 = 49,156.56 : x
  2. Step 2: Convert to fraction form
    55,135.26/76,123.08 = 49,156.56/x
  3. Step 3: Cross multiply
    55,135.26x = 76,123.08 × 49,156.56
  4. Step 4: Simplify right side
    55,135.26x = 3,741,948,749.40
  5. Step 5: Solve for x
    x = 3,741,948,749.40/55,135.26
  6. Step 6: Final answer
    x = 67,868.52

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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.