Home / 67,640.08-93,358.02-39,349.48

Finding the Fourth Proportional to 67,640.08, 93,358.02 and 39,349.48

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Solution

The fourth proportional to 67,640.08, 93,358.02 and 39,349.48 is: 54,310.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,640.08 : 93,358.02 = 39,349.48 : x
  2. Step 2: Convert to fraction form
    67,640.08/93,358.02 = 39,349.48/x
  3. Step 3: Cross multiply
    67,640.08x = 93,358.02 × 39,349.48
  4. Step 4: Simplify right side
    67,640.08x = 3,673,589,540.83
  5. Step 5: Solve for x
    x = 3,673,589,540.83/67,640.08
  6. Step 6: Final answer
    x = 54,310.84

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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.