Home / 68,783.40-94,926-38,166.54

Finding the Fourth Proportional to 68,783.40, 94,926 and 38,166.54

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Solution

The fourth proportional to 68,783.40, 94,926 and 38,166.54 is: 52,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,783.40 : 94,926 = 38,166.54 : x
  2. Step 2: Convert to fraction form
    68,783.40/94,926 = 38,166.54/x
  3. Step 3: Cross multiply
    68,783.40x = 94,926 × 38,166.54
  4. Step 4: Simplify right side
    68,783.40x = 3,622,996,976.04
  5. Step 5: Solve for x
    x = 3,622,996,976.04/68,783.40
  6. Step 6: Final answer
    x = 52,672.55

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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.