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Finding the Fourth Proportional to 74,314.80, 111,472.20 and 29,918.70

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Solution

The fourth proportional to 74,314.80, 111,472.20 and 29,918.70 is: 44,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,314.80 : 111,472.20 = 29,918.70 : x
  2. Step 2: Convert to fraction form
    74,314.80/111,472.20 = 29,918.70/x
  3. Step 3: Cross multiply
    74,314.80x = 111,472.20 × 29,918.70
  4. Step 4: Simplify right side
    74,314.80x = 3,335,103,310.14
  5. Step 5: Solve for x
    x = 3,335,103,310.14/74,314.80
  6. Step 6: Final answer
    x = 44,878.05

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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.