Home / 72,002.20-108,035.70-25,288.60

Finding the Fourth Proportional to 72,002.20, 108,035.70 and 25,288.60

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Solution

The fourth proportional to 72,002.20, 108,035.70 and 25,288.60 is: 37,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,002.20 : 108,035.70 = 25,288.60 : x
  2. Step 2: Convert to fraction form
    72,002.20/108,035.70 = 25,288.60/x
  3. Step 3: Cross multiply
    72,002.20x = 108,035.70 × 25,288.60
  4. Step 4: Simplify right side
    72,002.20x = 2,732,071,603.02
  5. Step 5: Solve for x
    x = 2,732,071,603.02/72,002.20
  6. Step 6: Final answer
    x = 37,944.28

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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.