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Finding the Fourth Proportional to 57,662.55, 86,486.40 and 18,223.65

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Solution

The fourth proportional to 57,662.55, 86,486.40 and 18,223.65 is: 27,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,662.55 : 86,486.40 = 18,223.65 : x
  2. Step 2: Convert to fraction form
    57,662.55/86,486.40 = 18,223.65/x
  3. Step 3: Cross multiply
    57,662.55x = 86,486.40 × 18,223.65
  4. Step 4: Simplify right side
    57,662.55x = 1,576,097,883.36
  5. Step 5: Solve for x
    x = 1,576,097,883.36/57,662.55
  6. Step 6: Final answer
    x = 27,333.13

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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.