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Finding the Fourth Proportional to 72,308.70, 108,445.56 and 27,907.14

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Solution

The fourth proportional to 72,308.70, 108,445.56 and 27,907.14 is: 41,853.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,308.70 : 108,445.56 = 27,907.14 : x
  2. Step 2: Convert to fraction form
    72,308.70/108,445.56 = 27,907.14/x
  3. Step 3: Cross multiply
    72,308.70x = 108,445.56 × 27,907.14
  4. Step 4: Simplify right side
    72,308.70x = 3,026,405,425.30
  5. Step 5: Solve for x
    x = 3,026,405,425.30/72,308.70
  6. Step 6: Final answer
    x = 41,853.96

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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.