Home / 56,686.90-85,031.75-27,107.86

Finding the Fourth Proportional to 56,686.90, 85,031.75 and 27,107.86

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Solution

The fourth proportional to 56,686.90, 85,031.75 and 27,107.86 is: 40,662.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,686.90 : 85,031.75 = 27,107.86 : x
  2. Step 2: Convert to fraction form
    56,686.90/85,031.75 = 27,107.86/x
  3. Step 3: Cross multiply
    56,686.90x = 85,031.75 × 27,107.86
  4. Step 4: Simplify right side
    56,686.90x = 2,305,028,774.56
  5. Step 5: Solve for x
    x = 2,305,028,774.56/56,686.90
  6. Step 6: Final answer
    x = 40,662.46

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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.