Home / 65,243.04-90,216.66-51,790.98

Finding the Fourth Proportional to 65,243.04, 90,216.66 and 51,790.98

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Solution

The fourth proportional to 65,243.04, 90,216.66 and 51,790.98 is: 71,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,243.04 : 90,216.66 = 51,790.98 : x
  2. Step 2: Convert to fraction form
    65,243.04/90,216.66 = 51,790.98/x
  3. Step 3: Cross multiply
    65,243.04x = 90,216.66 × 51,790.98
  4. Step 4: Simplify right side
    65,243.04x = 4,672,409,233.73
  5. Step 5: Solve for x
    x = 4,672,409,233.73/65,243.04
  6. Step 6: Final answer
    x = 71,615.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.