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Finding the Fourth Proportional to 72,189.38, 108,302.53 and 27,804.22

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Solution

The fourth proportional to 72,189.38, 108,302.53 and 27,804.22 is: 41,713.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,189.38 : 108,302.53 = 27,804.22 : x
  2. Step 2: Convert to fraction form
    72,189.38/108,302.53 = 27,804.22/x
  3. Step 3: Cross multiply
    72,189.38x = 108,302.53 × 27,804.22
  4. Step 4: Simplify right side
    72,189.38x = 3,011,267,030.41
  5. Step 5: Solve for x
    x = 3,011,267,030.41/72,189.38
  6. Step 6: Final answer
    x = 41,713.43

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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.