Home / 67,872.12-93,466.20-63,540

Finding the Fourth Proportional to 67,872.12, 93,466.20 and 63,540

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Solution

The fourth proportional to 67,872.12, 93,466.20 and 63,540 is: 87,500.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,872.12 : 93,466.20 = 63,540 : x
  2. Step 2: Convert to fraction form
    67,872.12/93,466.20 = 63,540/x
  3. Step 3: Cross multiply
    67,872.12x = 93,466.20 × 63,540
  4. Step 4: Simplify right side
    67,872.12x = 5,938,842,348
  5. Step 5: Solve for x
    x = 5,938,842,348/67,872.12
  6. Step 6: Final answer
    x = 87,500.47

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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.