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Finding the Fourth Proportional to 72,162.95, 108,246.27 and 34,203.35

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Solution

The fourth proportional to 72,162.95, 108,246.27 and 34,203.35 is: 51,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,162.95 : 108,246.27 = 34,203.35 : x
  2. Step 2: Convert to fraction form
    72,162.95/108,246.27 = 34,203.35/x
  3. Step 3: Cross multiply
    72,162.95x = 108,246.27 × 34,203.35
  4. Step 4: Simplify right side
    72,162.95x = 3,702,385,059.00
  5. Step 5: Solve for x
    x = 3,702,385,059.00/72,162.95
  6. Step 6: Final answer
    x = 51,305.90

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Why These Related Problems?

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