Home / 68,412.40-94,382.28-39,727.15

Finding the Fourth Proportional to 68,412.40, 94,382.28 and 39,727.15

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Solution

The fourth proportional to 68,412.40, 94,382.28 and 39,727.15 is: 54,807.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,412.40 : 94,382.28 = 39,727.15 : x
  2. Step 2: Convert to fraction form
    68,412.40/94,382.28 = 39,727.15/x
  3. Step 3: Cross multiply
    68,412.40x = 94,382.28 × 39,727.15
  4. Step 4: Simplify right side
    68,412.40x = 3,749,538,994.90
  5. Step 5: Solve for x
    x = 3,749,538,994.90/68,412.40
  6. Step 6: Final answer
    x = 54,807.89

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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.