Home / 51,926.77-77,890.11-12,483.87

Finding the Fourth Proportional to 51,926.77, 77,890.11 and 12,483.87

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Solution

The fourth proportional to 51,926.77, 77,890.11 and 12,483.87 is: 18,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,926.77 : 77,890.11 = 12,483.87 : x
  2. Step 2: Convert to fraction form
    51,926.77/77,890.11 = 12,483.87/x
  3. Step 3: Cross multiply
    51,926.77x = 77,890.11 × 12,483.87
  4. Step 4: Simplify right side
    51,926.77x = 972,370,007.53
  5. Step 5: Solve for x
    x = 972,370,007.53/51,926.77
  6. Step 6: Final answer
    x = 18,725.79

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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.