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Finding the Fourth Proportional to 72,876, 100,551.60 and 41,038.56

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Solution

The fourth proportional to 72,876, 100,551.60 and 41,038.56 is: 56,623.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,876 : 100,551.60 = 41,038.56 : x
  2. Step 2: Convert to fraction form
    72,876/100,551.60 = 41,038.56/x
  3. Step 3: Cross multiply
    72,876x = 100,551.60 × 41,038.56
  4. Step 4: Simplify right side
    72,876x = 4,126,492,869.70
  5. Step 5: Solve for x
    x = 4,126,492,869.70/72,876
  6. Step 6: Final answer
    x = 56,623.48

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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.