Home / 56,730.78-85,087.26-21,662.64

Finding the Fourth Proportional to 56,730.78, 85,087.26 and 21,662.64

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Solution

The fourth proportional to 56,730.78, 85,087.26 and 21,662.64 is: 32,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,730.78 : 85,087.26 = 21,662.64 : x
  2. Step 2: Convert to fraction form
    56,730.78/85,087.26 = 21,662.64/x
  3. Step 3: Cross multiply
    56,730.78x = 85,087.26 × 21,662.64
  4. Step 4: Simplify right side
    56,730.78x = 1,843,214,681.97
  5. Step 5: Solve for x
    x = 1,843,214,681.97/56,730.78
  6. Step 6: Final answer
    x = 32,490.56

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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.