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Finding the Fourth Proportional to 72,035.08, 108,063.42 and 25,279.72

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Solution

The fourth proportional to 72,035.08, 108,063.42 and 25,279.72 is: 37,923.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,035.08 : 108,063.42 = 25,279.72 : x
  2. Step 2: Convert to fraction form
    72,035.08/108,063.42 = 25,279.72/x
  3. Step 3: Cross multiply
    72,035.08x = 108,063.42 × 25,279.72
  4. Step 4: Simplify right side
    72,035.08x = 2,731,812,999.84
  5. Step 5: Solve for x
    x = 2,731,812,999.84/72,035.08
  6. Step 6: Final answer
    x = 37,923.37

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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.