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Finding the Fourth Proportional to 72,221.58, 108,292.68 and 22,288.06

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Solution

The fourth proportional to 72,221.58, 108,292.68 and 22,288.06 is: 33,419.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,221.58 : 108,292.68 = 22,288.06 : x
  2. Step 2: Convert to fraction form
    72,221.58/108,292.68 = 22,288.06/x
  3. Step 3: Cross multiply
    72,221.58x = 108,292.68 × 22,288.06
  4. Step 4: Simplify right side
    72,221.58x = 2,413,633,749.40
  5. Step 5: Solve for x
    x = 2,413,633,749.40/72,221.58
  6. Step 6: Final answer
    x = 33,419.84

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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.