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Finding the Fourth Proportional to 72,887.52, 100,584.96 and 42,266.55

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Solution

The fourth proportional to 72,887.52, 100,584.96 and 42,266.55 is: 58,327.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,887.52 : 100,584.96 = 42,266.55 : x
  2. Step 2: Convert to fraction form
    72,887.52/100,584.96 = 42,266.55/x
  3. Step 3: Cross multiply
    72,887.52x = 100,584.96 × 42,266.55
  4. Step 4: Simplify right side
    72,887.52x = 4,251,379,241.09
  5. Step 5: Solve for x
    x = 4,251,379,241.09/72,887.52
  6. Step 6: Final answer
    x = 58,327.94

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1.5x scale

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.