Home / 80,810.30-121,215.30-36,385.14

Finding the Fourth Proportional to 80,810.30, 121,215.30 and 36,385.14

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Solution

The fourth proportional to 80,810.30, 121,215.30 and 36,385.14 is: 54,577.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,810.30 : 121,215.30 = 36,385.14 : x
  2. Step 2: Convert to fraction form
    80,810.30/121,215.30 = 36,385.14/x
  3. Step 3: Cross multiply
    80,810.30x = 121,215.30 × 36,385.14
  4. Step 4: Simplify right side
    80,810.30x = 4,410,435,660.64
  5. Step 5: Solve for x
    x = 4,410,435,660.64/80,810.30
  6. Step 6: Final answer
    x = 54,577.64

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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.