Home / 68,436.12-93,755.91-65,877.60

Finding the Fourth Proportional to 68,436.12, 93,755.91 and 65,877.60

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Solution

The fourth proportional to 68,436.12, 93,755.91 and 65,877.60 is: 90,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,436.12 : 93,755.91 = 65,877.60 : x
  2. Step 2: Convert to fraction form
    68,436.12/93,755.91 = 65,877.60/x
  3. Step 3: Cross multiply
    68,436.12x = 93,755.91 × 65,877.60
  4. Step 4: Simplify right side
    68,436.12x = 6,176,414,583.66
  5. Step 5: Solve for x
    x = 6,176,414,583.66/68,436.12
  6. Step 6: Final answer
    x = 90,250.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.