Home / 51,838.70-77,776.79-18,109.72

Finding the Fourth Proportional to 51,838.70, 77,776.79 and 18,109.72

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Solution

The fourth proportional to 51,838.70, 77,776.79 and 18,109.72 is: 27,171.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,838.70 : 77,776.79 = 18,109.72 : x
  2. Step 2: Convert to fraction form
    51,838.70/77,776.79 = 18,109.72/x
  3. Step 3: Cross multiply
    51,838.70x = 77,776.79 × 18,109.72
  4. Step 4: Simplify right side
    51,838.70x = 1,408,515,740.23
  5. Step 5: Solve for x
    x = 1,408,515,740.23/51,838.70
  6. Step 6: Final answer
    x = 27,171.12

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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.