Home / 75,261.28-112,959.60-40,230.88

Finding the Fourth Proportional to 75,261.28, 112,959.60 and 40,230.88

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Solution

The fourth proportional to 75,261.28, 112,959.60 and 40,230.88 is: 60,382.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,261.28 : 112,959.60 = 40,230.88 : x
  2. Step 2: Convert to fraction form
    75,261.28/112,959.60 = 40,230.88/x
  3. Step 3: Cross multiply
    75,261.28x = 112,959.60 × 40,230.88
  4. Step 4: Simplify right side
    75,261.28x = 4,544,464,112.45
  5. Step 5: Solve for x
    x = 4,544,464,112.45/75,261.28
  6. Step 6: Final answer
    x = 60,382.50

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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.