Home / 74,872.68-103,322.39-40,882.11

Finding the Fourth Proportional to 74,872.68, 103,322.39 and 40,882.11

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Solution

The fourth proportional to 74,872.68, 103,322.39 and 40,882.11 is: 56,416.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,872.68 : 103,322.39 = 40,882.11 : x
  2. Step 2: Convert to fraction form
    74,872.68/103,322.39 = 40,882.11/x
  3. Step 3: Cross multiply
    74,872.68x = 103,322.39 × 40,882.11
  4. Step 4: Simplify right side
    74,872.68x = 4,224,037,109.03
  5. Step 5: Solve for x
    x = 4,224,037,109.03/74,872.68
  6. Step 6: Final answer
    x = 56,416.27

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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.