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Finding the Fourth Proportional to 72,193.48, 108,308.67 and 27,808.32

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Solution

The fourth proportional to 72,193.48, 108,308.67 and 27,808.32 is: 41,719.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,193.48 : 108,308.67 = 27,808.32 : x
  2. Step 2: Convert to fraction form
    72,193.48/108,308.67 = 27,808.32/x
  3. Step 3: Cross multiply
    72,193.48x = 108,308.67 × 27,808.32
  4. Step 4: Simplify right side
    72,193.48x = 3,011,882,154.13
  5. Step 5: Solve for x
    x = 3,011,882,154.13/72,193.48
  6. Step 6: Final answer
    x = 41,719.59

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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.