Home / 80,803.52-121,228.32-27,507.20

Finding the Fourth Proportional to 80,803.52, 121,228.32 and 27,507.20

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Solution

The fourth proportional to 80,803.52, 121,228.32 and 27,507.20 is: 41,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,803.52 : 121,228.32 = 27,507.20 : x
  2. Step 2: Convert to fraction form
    80,803.52/121,228.32 = 27,507.20/x
  3. Step 3: Cross multiply
    80,803.52x = 121,228.32 × 27,507.20
  4. Step 4: Simplify right side
    80,803.52x = 3,334,651,643.90
  5. Step 5: Solve for x
    x = 3,334,651,643.90/80,803.52
  6. Step 6: Final answer
    x = 41,268.64

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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.