Home / 67,680.06-93,408.03-39,394.86

Finding the Fourth Proportional to 67,680.06, 93,408.03 and 39,394.86

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Solution

The fourth proportional to 67,680.06, 93,408.03 and 39,394.86 is: 54,370.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,680.06 : 93,408.03 = 39,394.86 : x
  2. Step 2: Convert to fraction form
    67,680.06/93,408.03 = 39,394.86/x
  3. Step 3: Cross multiply
    67,680.06x = 93,408.03 × 39,394.86
  4. Step 4: Simplify right side
    67,680.06x = 3,679,796,264.73
  5. Step 5: Solve for x
    x = 3,679,796,264.73/67,680.06
  6. Step 6: Final answer
    x = 54,370.46

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1.5x scale

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.