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Finding the Fourth Proportional to 68,653.98, 94,742.73 and 38,440.62

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Solution

The fourth proportional to 68,653.98, 94,742.73 and 38,440.62 is: 53,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,653.98 : 94,742.73 = 38,440.62 : x
  2. Step 2: Convert to fraction form
    68,653.98/94,742.73 = 38,440.62/x
  3. Step 3: Cross multiply
    68,653.98x = 94,742.73 × 38,440.62
  4. Step 4: Simplify right side
    68,653.98x = 3,641,969,281.69
  5. Step 5: Solve for x
    x = 3,641,969,281.69/68,653.98
  6. Step 6: Final answer
    x = 53,048.19

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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.