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Finding the Fourth Proportional to 72,367.92, 108,551.88 and 35,406

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Solution

The fourth proportional to 72,367.92, 108,551.88 and 35,406 is: 53,109.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,367.92 : 108,551.88 = 35,406 : x
  2. Step 2: Convert to fraction form
    72,367.92/108,551.88 = 35,406/x
  3. Step 3: Cross multiply
    72,367.92x = 108,551.88 × 35,406
  4. Step 4: Simplify right side
    72,367.92x = 3,843,387,863.28
  5. Step 5: Solve for x
    x = 3,843,387,863.28/72,367.92
  6. Step 6: Final answer
    x = 53,109.00

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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.