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Finding the Fourth Proportional to 77,858, 116,801.52 and 25,260.64

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Solution

The fourth proportional to 77,858, 116,801.52 and 25,260.64 is: 37,895.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,858 : 116,801.52 = 25,260.64 : x
  2. Step 2: Convert to fraction form
    77,858/116,801.52 = 25,260.64/x
  3. Step 3: Cross multiply
    77,858x = 116,801.52 × 25,260.64
  4. Step 4: Simplify right side
    77,858x = 2,950,481,148.17
  5. Step 5: Solve for x
    x = 2,950,481,148.17/77,858
  6. Step 6: Final answer
    x = 37,895.67

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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.