Home / 68,355.20-94,315.05-39,658.22

Finding the Fourth Proportional to 68,355.20, 94,315.05 and 39,658.22

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Solution

The fourth proportional to 68,355.20, 94,315.05 and 39,658.22 is: 54,719.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,355.20 : 94,315.05 = 39,658.22 : x
  2. Step 2: Convert to fraction form
    68,355.20/94,315.05 = 39,658.22/x
  3. Step 3: Cross multiply
    68,355.20x = 94,315.05 × 39,658.22
  4. Step 4: Simplify right side
    68,355.20x = 3,740,366,530.64
  5. Step 5: Solve for x
    x = 3,740,366,530.64/68,355.20
  6. Step 6: Final answer
    x = 54,719.56

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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.