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Finding the Fourth Proportional to 68,344.74, 94,314.87 and 38,129.70

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Solution

The fourth proportional to 68,344.74, 94,314.87 and 38,129.70 is: 52,618.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,344.74 : 94,314.87 = 38,129.70 : x
  2. Step 2: Convert to fraction form
    68,344.74/94,314.87 = 38,129.70/x
  3. Step 3: Cross multiply
    68,344.74x = 94,314.87 × 38,129.70
  4. Step 4: Simplify right side
    68,344.74x = 3,596,197,698.64
  5. Step 5: Solve for x
    x = 3,596,197,698.64/68,344.74
  6. Step 6: Final answer
    x = 52,618.50

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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.