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Finding the Fourth Proportional to 72,806.84, 100,504.43 and 48,947.34

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Solution

The fourth proportional to 72,806.84, 100,504.43 and 48,947.34 is: 67,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,806.84 : 100,504.43 = 48,947.34 : x
  2. Step 2: Convert to fraction form
    72,806.84/100,504.43 = 48,947.34/x
  3. Step 3: Cross multiply
    72,806.84x = 100,504.43 × 48,947.34
  4. Step 4: Simplify right side
    72,806.84x = 4,919,424,822.42
  5. Step 5: Solve for x
    x = 4,919,424,822.42/72,806.84
  6. Step 6: Final answer
    x = 67,568.17

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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.