Home / 68,635.50-94,718.59-38,420.06

Finding the Fourth Proportional to 68,635.50, 94,718.59 and 38,420.06

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Solution

The fourth proportional to 68,635.50, 94,718.59 and 38,420.06 is: 53,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,635.50 : 94,718.59 = 38,420.06 : x
  2. Step 2: Convert to fraction form
    68,635.50/94,718.59 = 38,420.06/x
  3. Step 3: Cross multiply
    68,635.50x = 94,718.59 × 38,420.06
  4. Step 4: Simplify right side
    68,635.50x = 3,639,093,910.92
  5. Step 5: Solve for x
    x = 3,639,093,910.92/68,635.50
  6. Step 6: Final answer
    x = 53,020.58

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Double scale
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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.