Home / 40,719.61-61,081.26-11,136.79

Finding the Fourth Proportional to 40,719.61, 61,081.26 and 11,136.79

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Solution

The fourth proportional to 40,719.61, 61,081.26 and 11,136.79 is: 16,705.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,719.61 : 61,081.26 = 11,136.79 : x
  2. Step 2: Convert to fraction form
    40,719.61/61,081.26 = 11,136.79/x
  3. Step 3: Cross multiply
    40,719.61x = 61,081.26 × 11,136.79
  4. Step 4: Simplify right side
    40,719.61x = 680,249,165.56
  5. Step 5: Solve for x
    x = 680,249,165.56/40,719.61
  6. Step 6: Final answer
    x = 16,705.69

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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.