Home / 51,136.74-76,703.28-17,856.68

Finding the Fourth Proportional to 51,136.74, 76,703.28 and 17,856.68

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Solution

The fourth proportional to 51,136.74, 76,703.28 and 17,856.68 is: 26,784.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,136.74 : 76,703.28 = 17,856.68 : x
  2. Step 2: Convert to fraction form
    51,136.74/76,703.28 = 17,856.68/x
  3. Step 3: Cross multiply
    51,136.74x = 76,703.28 × 17,856.68
  4. Step 4: Simplify right side
    51,136.74x = 1,369,665,542.39
  5. Step 5: Solve for x
    x = 1,369,665,542.39/51,136.74
  6. Step 6: Final answer
    x = 26,784.37

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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.