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Finding the Fourth Proportional to 72,336.25, 108,503.26 and 19,745.58

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Solution

The fourth proportional to 72,336.25, 108,503.26 and 19,745.58 is: 29,618.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,336.25 : 108,503.26 = 19,745.58 : x
  2. Step 2: Convert to fraction form
    72,336.25/108,503.26 = 19,745.58/x
  3. Step 3: Cross multiply
    72,336.25x = 108,503.26 × 19,745.58
  4. Step 4: Simplify right side
    72,336.25x = 2,142,459,751.23
  5. Step 5: Solve for x
    x = 2,142,459,751.23/72,336.25
  6. Step 6: Final answer
    x = 29,618.07

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1.5x scale

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.