Home / 51,579.50-77,403.83-18,747.50

Finding the Fourth Proportional to 51,579.50, 77,403.83 and 18,747.50

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Solution

The fourth proportional to 51,579.50, 77,403.83 and 18,747.50 is: 28,133.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,579.50 : 77,403.83 = 18,747.50 : x
  2. Step 2: Convert to fraction form
    51,579.50/77,403.83 = 18,747.50/x
  3. Step 3: Cross multiply
    51,579.50x = 77,403.83 × 18,747.50
  4. Step 4: Simplify right side
    51,579.50x = 1,451,128,302.93
  5. Step 5: Solve for x
    x = 1,451,128,302.93/51,579.50
  6. Step 6: Final answer
    x = 28,133.82

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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.