Home / 68,412.08-102,512.28-46,138.16

Finding the Fourth Proportional to 68,412.08, 102,512.28 and 46,138.16

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Solution

The fourth proportional to 68,412.08, 102,512.28 and 46,138.16 is: 69,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,412.08 : 102,512.28 = 46,138.16 : x
  2. Step 2: Convert to fraction form
    68,412.08/102,512.28 = 46,138.16/x
  3. Step 3: Cross multiply
    68,412.08x = 102,512.28 × 46,138.16
  4. Step 4: Simplify right side
    68,412.08x = 4,729,727,976.60
  5. Step 5: Solve for x
    x = 4,729,727,976.60/68,412.08
  6. Step 6: Final answer
    x = 69,135.86

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1.5x scale

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.