Home / 45,382.20-68,138.10-25,699.20

Finding the Fourth Proportional to 45,382.20, 68,138.10 and 25,699.20

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Solution

The fourth proportional to 45,382.20, 68,138.10 and 25,699.20 is: 38,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,382.20 : 68,138.10 = 25,699.20 : x
  2. Step 2: Convert to fraction form
    45,382.20/68,138.10 = 25,699.20/x
  3. Step 3: Cross multiply
    45,382.20x = 68,138.10 × 25,699.20
  4. Step 4: Simplify right side
    45,382.20x = 1,751,094,659.52
  5. Step 5: Solve for x
    x = 1,751,094,659.52/45,382.20
  6. Step 6: Final answer
    x = 38,585.50

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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.