Home / 68,440.66-94,441.96-38,221.79

Finding the Fourth Proportional to 68,440.66, 94,441.96 and 38,221.79

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Solution

The fourth proportional to 68,440.66, 94,441.96 and 38,221.79 is: 52,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,440.66 : 94,441.96 = 38,221.79 : x
  2. Step 2: Convert to fraction form
    68,440.66/94,441.96 = 38,221.79/x
  3. Step 3: Cross multiply
    68,440.66x = 94,441.96 × 38,221.79
  4. Step 4: Simplify right side
    68,440.66x = 3,609,740,762.31
  5. Step 5: Solve for x
    x = 3,609,740,762.31/68,440.66
  6. Step 6: Final answer
    x = 52,742.64

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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.