Home / 56,829.64-85,227.18-19,885

Finding the Fourth Proportional to 56,829.64, 85,227.18 and 19,885

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Solution

The fourth proportional to 56,829.64, 85,227.18 and 19,885 is: 29,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,829.64 : 85,227.18 = 19,885 : x
  2. Step 2: Convert to fraction form
    56,829.64/85,227.18 = 19,885/x
  3. Step 3: Cross multiply
    56,829.64x = 85,227.18 × 19,885
  4. Step 4: Simplify right side
    56,829.64x = 1,694,742,474.30
  5. Step 5: Solve for x
    x = 1,694,742,474.30/56,829.64
  6. Step 6: Final answer
    x = 29,821.45

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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.