Home / 52,872.75-79,308.32-21,290.85

Finding the Fourth Proportional to 52,872.75, 79,308.32 and 21,290.85

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Solution

The fourth proportional to 52,872.75, 79,308.32 and 21,290.85 is: 31,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,872.75 : 79,308.32 = 21,290.85 : x
  2. Step 2: Convert to fraction form
    52,872.75/79,308.32 = 21,290.85/x
  3. Step 3: Cross multiply
    52,872.75x = 79,308.32 × 21,290.85
  4. Step 4: Simplify right side
    52,872.75x = 1,688,541,438.42
  5. Step 5: Solve for x
    x = 1,688,541,438.42/52,872.75
  6. Step 6: Final answer
    x = 31,935.95

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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.