Home / 45,520.64-68,251.76-31,441.20

Finding the Fourth Proportional to 45,520.64, 68,251.76 and 31,441.20

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Solution

The fourth proportional to 45,520.64, 68,251.76 and 31,441.20 is: 47,141.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,520.64 : 68,251.76 = 31,441.20 : x
  2. Step 2: Convert to fraction form
    45,520.64/68,251.76 = 31,441.20/x
  3. Step 3: Cross multiply
    45,520.64x = 68,251.76 × 31,441.20
  4. Step 4: Simplify right side
    45,520.64x = 2,145,917,236.51
  5. Step 5: Solve for x
    x = 2,145,917,236.51/45,520.64
  6. Step 6: Final answer
    x = 47,141.63

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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.