Home / 57,872.84-86,785.50-18,419.36

Finding the Fourth Proportional to 57,872.84, 86,785.50 and 18,419.36

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Solution

The fourth proportional to 57,872.84, 86,785.50 and 18,419.36 is: 27,621.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,872.84 : 86,785.50 = 18,419.36 : x
  2. Step 2: Convert to fraction form
    57,872.84/86,785.50 = 18,419.36/x
  3. Step 3: Cross multiply
    57,872.84x = 86,785.50 × 18,419.36
  4. Step 4: Simplify right side
    57,872.84x = 1,598,533,367.28
  5. Step 5: Solve for x
    x = 1,598,533,367.28/57,872.84
  6. Step 6: Final answer
    x = 27,621.48

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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.