Home / 68,419.14-94,407.15-38,199.61

Finding the Fourth Proportional to 68,419.14, 94,407.15 and 38,199.61

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Solution

The fourth proportional to 68,419.14, 94,407.15 and 38,199.61 is: 52,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,419.14 : 94,407.15 = 38,199.61 : x
  2. Step 2: Convert to fraction form
    68,419.14/94,407.15 = 38,199.61/x
  3. Step 3: Cross multiply
    68,419.14x = 94,407.15 × 38,199.61
  4. Step 4: Simplify right side
    68,419.14x = 3,606,316,311.21
  5. Step 5: Solve for x
    x = 3,606,316,311.21/68,419.14
  6. Step 6: Final answer
    x = 52,709.17

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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.