Home / 67,639.82-93,360.67-38,962.78

Finding the Fourth Proportional to 67,639.82, 93,360.67 and 38,962.78

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Solution

The fourth proportional to 67,639.82, 93,360.67 and 38,962.78 is: 53,778.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,639.82 : 93,360.67 = 38,962.78 : x
  2. Step 2: Convert to fraction form
    67,639.82/93,360.67 = 38,962.78/x
  3. Step 3: Cross multiply
    67,639.82x = 93,360.67 × 38,962.78
  4. Step 4: Simplify right side
    67,639.82x = 3,637,591,245.86
  5. Step 5: Solve for x
    x = 3,637,591,245.86/67,639.82
  6. Step 6: Final answer
    x = 53,778.84

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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.