Home / 80,817.76-121,228.62-27,509.64

Finding the Fourth Proportional to 80,817.76, 121,228.62 and 27,509.64

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Solution

The fourth proportional to 80,817.76, 121,228.62 and 27,509.64 is: 41,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,817.76 : 121,228.62 = 27,509.64 : x
  2. Step 2: Convert to fraction form
    80,817.76/121,228.62 = 27,509.64/x
  3. Step 3: Cross multiply
    80,817.76x = 121,228.62 × 27,509.64
  4. Step 4: Simplify right side
    80,817.76x = 3,334,955,693.90
  5. Step 5: Solve for x
    x = 3,334,955,693.90/80,817.76
  6. Step 6: Final answer
    x = 41,265.13

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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.