Home / 68,450.76-94,400.69-57,003.58

Finding the Fourth Proportional to 68,450.76, 94,400.69 and 57,003.58

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Solution

The fourth proportional to 68,450.76, 94,400.69 and 57,003.58 is: 78,613.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,450.76 : 94,400.69 = 57,003.58 : x
  2. Step 2: Convert to fraction form
    68,450.76/94,400.69 = 57,003.58/x
  3. Step 3: Cross multiply
    68,450.76x = 94,400.69 × 57,003.58
  4. Step 4: Simplify right side
    68,450.76x = 5,381,176,851.95
  5. Step 5: Solve for x
    x = 5,381,176,851.95/68,450.76
  6. Step 6: Final answer
    x = 78,613.83

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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.