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Finding the Fourth Proportional to 72,270.92, 108,437.39 and 27,928.80

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Solution

The fourth proportional to 72,270.92, 108,437.39 and 27,928.80 is: 41,905.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,270.92 : 108,437.39 = 27,928.80 : x
  2. Step 2: Convert to fraction form
    72,270.92/108,437.39 = 27,928.80/x
  3. Step 3: Cross multiply
    72,270.92x = 108,437.39 × 27,928.80
  4. Step 4: Simplify right side
    72,270.92x = 3,028,526,038.19
  5. Step 5: Solve for x
    x = 3,028,526,038.19/72,270.92
  6. Step 6: Final answer
    x = 41,905.18

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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.