Home / 85,844.32-128,725.62-26,680.84

Finding the Fourth Proportional to 85,844.32, 128,725.62 and 26,680.84

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Solution

The fourth proportional to 85,844.32, 128,725.62 and 26,680.84 is: 40,008.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,844.32 : 128,725.62 = 26,680.84 : x
  2. Step 2: Convert to fraction form
    85,844.32/128,725.62 = 26,680.84/x
  3. Step 3: Cross multiply
    85,844.32x = 128,725.62 × 26,680.84
  4. Step 4: Simplify right side
    85,844.32x = 3,434,507,671.12
  5. Step 5: Solve for x
    x = 3,434,507,671.12/85,844.32
  6. Step 6: Final answer
    x = 40,008.56

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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.