Home / 53,972.10-80,994.60-30,279.60

Finding the Fourth Proportional to 53,972.10, 80,994.60 and 30,279.60

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Solution

The fourth proportional to 53,972.10, 80,994.60 and 30,279.60 is: 45,439.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,972.10 : 80,994.60 = 30,279.60 : x
  2. Step 2: Convert to fraction form
    53,972.10/80,994.60 = 30,279.60/x
  3. Step 3: Cross multiply
    53,972.10x = 80,994.60 × 30,279.60
  4. Step 4: Simplify right side
    53,972.10x = 2,452,484,090.16
  5. Step 5: Solve for x
    x = 2,452,484,090.16/53,972.10
  6. Step 6: Final answer
    x = 45,439.85

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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.