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Finding the Fourth Proportional to 68,707.60, 103,061.40 and 54,883.60

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Solution

The fourth proportional to 68,707.60, 103,061.40 and 54,883.60 is: 82,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,707.60 : 103,061.40 = 54,883.60 : x
  2. Step 2: Convert to fraction form
    68,707.60/103,061.40 = 54,883.60/x
  3. Step 3: Cross multiply
    68,707.60x = 103,061.40 × 54,883.60
  4. Step 4: Simplify right side
    68,707.60x = 5,656,380,653.04
  5. Step 5: Solve for x
    x = 5,656,380,653.04/68,707.60
  6. Step 6: Final answer
    x = 82,325.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.