Home / 91,811.20-126,689.04-51,516.56

Finding the Fourth Proportional to 91,811.20, 126,689.04 and 51,516.56

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Solution

The fourth proportional to 91,811.20, 126,689.04 and 51,516.56 is: 71,087.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,811.20 : 126,689.04 = 51,516.56 : x
  2. Step 2: Convert to fraction form
    91,811.20/126,689.04 = 51,516.56/x
  3. Step 3: Cross multiply
    91,811.20x = 126,689.04 × 51,516.56
  4. Step 4: Simplify right side
    91,811.20x = 6,526,583,530.50
  5. Step 5: Solve for x
    x = 6,526,583,530.50/91,811.20
  6. Step 6: Final answer
    x = 71,087.01

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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.