Home / 91,861.05-126,760.50-55,576.02

Finding the Fourth Proportional to 91,861.05, 126,760.50 and 55,576.02

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Solution

The fourth proportional to 91,861.05, 126,760.50 and 55,576.02 is: 76,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,861.05 : 126,760.50 = 55,576.02 : x
  2. Step 2: Convert to fraction form
    91,861.05/126,760.50 = 55,576.02/x
  3. Step 3: Cross multiply
    91,861.05x = 126,760.50 × 55,576.02
  4. Step 4: Simplify right side
    91,861.05x = 7,044,844,083.21
  5. Step 5: Solve for x
    x = 7,044,844,083.21/91,861.05
  6. Step 6: Final answer
    x = 76,690.22

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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.