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Finding the Fourth Proportional to 83,628, 125,485.02 and 55,567.44

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Solution

The fourth proportional to 83,628, 125,485.02 and 55,567.44 is: 83,379.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,628 : 125,485.02 = 55,567.44 : x
  2. Step 2: Convert to fraction form
    83,628/125,485.02 = 55,567.44/x
  3. Step 3: Cross multiply
    83,628x = 125,485.02 × 55,567.44
  4. Step 4: Simplify right side
    83,628x = 6,972,881,319.75
  5. Step 5: Solve for x
    x = 6,972,881,319.75/83,628
  6. Step 6: Final answer
    x = 83,379.75

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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.