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Finding the Fourth Proportional to 72,305.10, 108,502.55 and 34,869.03

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Solution

The fourth proportional to 72,305.10, 108,502.55 and 34,869.03 is: 52,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,305.10 : 108,502.55 = 34,869.03 : x
  2. Step 2: Convert to fraction form
    72,305.10/108,502.55 = 34,869.03/x
  3. Step 3: Cross multiply
    72,305.10x = 108,502.55 × 34,869.03
  4. Step 4: Simplify right side
    72,305.10x = 3,783,378,671.03
  5. Step 5: Solve for x
    x = 3,783,378,671.03/72,305.10
  6. Step 6: Final answer
    x = 52,325.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.