Home / 81,462.85-122,188.20-34,065.70

Finding the Fourth Proportional to 81,462.85, 122,188.20 and 34,065.70

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Solution

The fourth proportional to 81,462.85, 122,188.20 and 34,065.70 is: 51,096.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,462.85 : 122,188.20 = 34,065.70 : x
  2. Step 2: Convert to fraction form
    81,462.85/122,188.20 = 34,065.70/x
  3. Step 3: Cross multiply
    81,462.85x = 122,188.20 × 34,065.70
  4. Step 4: Simplify right side
    81,462.85x = 4,162,426,564.74
  5. Step 5: Solve for x
    x = 4,162,426,564.74/81,462.85
  6. Step 6: Final answer
    x = 51,096.01

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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.