Home / 68,780.59-94,919.60-38,566.28

Finding the Fourth Proportional to 68,780.59, 94,919.60 and 38,566.28

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Solution

The fourth proportional to 68,780.59, 94,919.60 and 38,566.28 is: 53,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,780.59 : 94,919.60 = 38,566.28 : x
  2. Step 2: Convert to fraction form
    68,780.59/94,919.60 = 38,566.28/x
  3. Step 3: Cross multiply
    68,780.59x = 94,919.60 × 38,566.28
  4. Step 4: Simplify right side
    68,780.59x = 3,660,695,453.94
  5. Step 5: Solve for x
    x = 3,660,695,453.94/68,780.59
  6. Step 6: Final answer
    x = 53,222.80

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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.