Home / 55,149.78-82,684.34-17,688.53

Finding the Fourth Proportional to 55,149.78, 82,684.34 and 17,688.53

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Solution

The fourth proportional to 55,149.78, 82,684.34 and 17,688.53 is: 26,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,149.78 : 82,684.34 = 17,688.53 : x
  2. Step 2: Convert to fraction form
    55,149.78/82,684.34 = 17,688.53/x
  3. Step 3: Cross multiply
    55,149.78x = 82,684.34 × 17,688.53
  4. Step 4: Simplify right side
    55,149.78x = 1,462,564,428.62
  5. Step 5: Solve for x
    x = 1,462,564,428.62/55,149.78
  6. Step 6: Final answer
    x = 26,519.86

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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.