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Finding the Fourth Proportional to 72,557.80, 100,150.70 and 43,877.50

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Solution

The fourth proportional to 72,557.80, 100,150.70 and 43,877.50 is: 60,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,557.80 : 100,150.70 = 43,877.50 : x
  2. Step 2: Convert to fraction form
    72,557.80/100,150.70 = 43,877.50/x
  3. Step 3: Cross multiply
    72,557.80x = 100,150.70 × 43,877.50
  4. Step 4: Simplify right side
    72,557.80x = 4,394,362,339.25
  5. Step 5: Solve for x
    x = 4,394,362,339.25/72,557.80
  6. Step 6: Final answer
    x = 60,563.61

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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.