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Finding the Fourth Proportional to 86,123.44, 118,873.73 and 55,907.00

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Solution

The fourth proportional to 86,123.44, 118,873.73 and 55,907.00 is: 77,166.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,123.44 : 118,873.73 = 55,907.00 : x
  2. Step 2: Convert to fraction form
    86,123.44/118,873.73 = 55,907.00/x
  3. Step 3: Cross multiply
    86,123.44x = 118,873.73 × 55,907.00
  4. Step 4: Simplify right side
    86,123.44x = 6,645,872,749.21
  5. Step 5: Solve for x
    x = 6,645,872,749.21/86,123.44
  6. Step 6: Final answer
    x = 77,166.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.