Home / 61,811.28-85,288.17-36,321.79

Finding the Fourth Proportional to 61,811.28, 85,288.17 and 36,321.79

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Solution

The fourth proportional to 61,811.28, 85,288.17 and 36,321.79 is: 50,117.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,811.28 : 85,288.17 = 36,321.79 : x
  2. Step 2: Convert to fraction form
    61,811.28/85,288.17 = 36,321.79/x
  3. Step 3: Cross multiply
    61,811.28x = 85,288.17 × 36,321.79
  4. Step 4: Simplify right side
    61,811.28x = 3,097,819,000.22
  5. Step 5: Solve for x
    x = 3,097,819,000.22/61,811.28
  6. Step 6: Final answer
    x = 50,117.37

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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.