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Finding the Fourth Proportional to 68,281.40, 102,422.10 and 44,661.80

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Solution

The fourth proportional to 68,281.40, 102,422.10 and 44,661.80 is: 66,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,281.40 : 102,422.10 = 44,661.80 : x
  2. Step 2: Convert to fraction form
    68,281.40/102,422.10 = 44,661.80/x
  3. Step 3: Cross multiply
    68,281.40x = 102,422.10 × 44,661.80
  4. Step 4: Simplify right side
    68,281.40x = 4,574,355,345.78
  5. Step 5: Solve for x
    x = 4,574,355,345.78/68,281.40
  6. Step 6: Final answer
    x = 66,992.70

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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.