Home / 68,390.22-94,378.14-39,716.93

Finding the Fourth Proportional to 68,390.22, 94,378.14 and 39,716.93

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Solution

The fourth proportional to 68,390.22, 94,378.14 and 39,716.93 is: 54,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,390.22 : 94,378.14 = 39,716.93 : x
  2. Step 2: Convert to fraction form
    68,390.22/94,378.14 = 39,716.93/x
  3. Step 3: Cross multiply
    68,390.22x = 94,378.14 × 39,716.93
  4. Step 4: Simplify right side
    68,390.22x = 3,748,409,979.91
  5. Step 5: Solve for x
    x = 3,748,409,979.91/68,390.22
  6. Step 6: Final answer
    x = 54,809.15

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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.