Home / 51,431.76-77,142.48-36,502.56

Finding the Fourth Proportional to 51,431.76, 77,142.48 and 36,502.56

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Solution

The fourth proportional to 51,431.76, 77,142.48 and 36,502.56 is: 54,750.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,431.76 : 77,142.48 = 36,502.56 : x
  2. Step 2: Convert to fraction form
    51,431.76/77,142.48 = 36,502.56/x
  3. Step 3: Cross multiply
    51,431.76x = 77,142.48 × 36,502.56
  4. Step 4: Simplify right side
    51,431.76x = 2,815,898,004.75
  5. Step 5: Solve for x
    x = 2,815,898,004.75/51,431.76
  6. Step 6: Final answer
    x = 54,750.18

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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.