Home / 51,711.89-77,542.29-30,369.96

Finding the Fourth Proportional to 51,711.89, 77,542.29 and 30,369.96

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Solution

The fourth proportional to 51,711.89, 77,542.29 and 30,369.96 is: 45,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,711.89 : 77,542.29 = 30,369.96 : x
  2. Step 2: Convert to fraction form
    51,711.89/77,542.29 = 30,369.96/x
  3. Step 3: Cross multiply
    51,711.89x = 77,542.29 × 30,369.96
  4. Step 4: Simplify right side
    51,711.89x = 2,354,956,245.61
  5. Step 5: Solve for x
    x = 2,354,956,245.61/51,711.89
  6. Step 6: Final answer
    x = 45,539.94

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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.