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Finding the Fourth Proportional to 57,725.78, 86,588.07 and 18,282.88

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Solution

The fourth proportional to 57,725.78, 86,588.07 and 18,282.88 is: 27,424.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,725.78 : 86,588.07 = 18,282.88 : x
  2. Step 2: Convert to fraction form
    57,725.78/86,588.07 = 18,282.88/x
  3. Step 3: Cross multiply
    57,725.78x = 86,588.07 × 18,282.88
  4. Step 4: Simplify right side
    57,725.78x = 1,583,079,332.92
  5. Step 5: Solve for x
    x = 1,583,079,332.92/57,725.78
  6. Step 6: Final answer
    x = 27,424.13

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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.