Home / 75,674.59-113,513.24-19,515.87

Finding the Fourth Proportional to 75,674.59, 113,513.24 and 19,515.87

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Solution

The fourth proportional to 75,674.59, 113,513.24 and 19,515.87 is: 29,274.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,674.59 : 113,513.24 = 19,515.87 : x
  2. Step 2: Convert to fraction form
    75,674.59/113,513.24 = 19,515.87/x
  3. Step 3: Cross multiply
    75,674.59x = 113,513.24 × 19,515.87
  4. Step 4: Simplify right side
    75,674.59x = 2,215,309,683.91
  5. Step 5: Solve for x
    x = 2,215,309,683.91/75,674.59
  6. Step 6: Final answer
    x = 29,274.16

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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.