Home / 75,671.55-113,513.85-19,511.16

Finding the Fourth Proportional to 75,671.55, 113,513.85 and 19,511.16

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Solution

The fourth proportional to 75,671.55, 113,513.85 and 19,511.16 is: 29,268.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,671.55 : 113,513.85 = 19,511.16 : x
  2. Step 2: Convert to fraction form
    75,671.55/113,513.85 = 19,511.16/x
  3. Step 3: Cross multiply
    75,671.55x = 113,513.85 × 19,511.16
  4. Step 4: Simplify right side
    75,671.55x = 2,214,786,889.57
  5. Step 5: Solve for x
    x = 2,214,786,889.57/75,671.55
  6. Step 6: Final answer
    x = 29,268.42

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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.