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Finding the Fourth Proportional to 69,006.68, 103,510.02 and 55,090.52

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Solution

The fourth proportional to 69,006.68, 103,510.02 and 55,090.52 is: 82,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,006.68 : 103,510.02 = 55,090.52 : x
  2. Step 2: Convert to fraction form
    69,006.68/103,510.02 = 55,090.52/x
  3. Step 3: Cross multiply
    69,006.68x = 103,510.02 × 55,090.52
  4. Step 4: Simplify right side
    69,006.68x = 5,702,420,827.01
  5. Step 5: Solve for x
    x = 5,702,420,827.01/69,006.68
  6. Step 6: Final answer
    x = 82,635.78

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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.