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Finding the Fourth Proportional to 68,284.32, 94,232.03 and 39,609.78

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Solution

The fourth proportional to 68,284.32, 94,232.03 and 39,609.78 is: 54,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,284.32 : 94,232.03 = 39,609.78 : x
  2. Step 2: Convert to fraction form
    68,284.32/94,232.03 = 39,609.78/x
  3. Step 3: Cross multiply
    68,284.32x = 94,232.03 × 39,609.78
  4. Step 4: Simplify right side
    68,284.32x = 3,732,509,779.20
  5. Step 5: Solve for x
    x = 3,732,509,779.20/68,284.32
  6. Step 6: Final answer
    x = 54,661.30

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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.