Home / 56,747.72-85,115.10-21,686.60

Finding the Fourth Proportional to 56,747.72, 85,115.10 and 21,686.60

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Solution

The fourth proportional to 56,747.72, 85,115.10 and 21,686.60 is: 32,527.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,747.72 : 85,115.10 = 21,686.60 : x
  2. Step 2: Convert to fraction form
    56,747.72/85,115.10 = 21,686.60/x
  3. Step 3: Cross multiply
    56,747.72x = 85,115.10 × 21,686.60
  4. Step 4: Simplify right side
    56,747.72x = 1,845,857,127.66
  5. Step 5: Solve for x
    x = 1,845,857,127.66/56,747.72
  6. Step 6: Final answer
    x = 32,527.42

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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.